2014-05-24 12:50:23 +00:00
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; RUN: llc < %s -mcpu=cyclone -verify-machineinstrs -aarch64-ccmp -aarch64-stress-ccmp | FileCheck %s
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2014-03-29 10:18:08 +00:00
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target triple = "arm64-apple-ios"
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; CHECK: single_same
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; CHECK: cmp w0, #5
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; CHECK-NEXT: ccmp w1, #17, #4, ne
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; CHECK-NEXT: b.ne
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; CHECK: %if.then
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; CHECK: bl _foo
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; CHECK: %if.end
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define i32 @single_same(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 5
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%cmp1 = icmp eq i32 %b, 17
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Different condition codes for the two compares.
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; CHECK: single_different
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; CHECK: cmp w0, #6
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; CHECK-NEXT: ccmp w1, #17, #0, ge
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; CHECK-NEXT: b.eq
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; CHECK: %if.then
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; CHECK: bl _foo
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; CHECK: %if.end
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define i32 @single_different(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp sle i32 %a, 5
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%cmp1 = icmp ne i32 %b, 17
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Second block clobbers the flags, can't convert (easily).
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; CHECK: single_flagclobber
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; CHECK: cmp
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; CHECK: b.eq
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; CHECK: cmp
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; CHECK: b.gt
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define i32 @single_flagclobber(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 5
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br i1 %cmp, label %if.then, label %lor.lhs.false
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lor.lhs.false: ; preds = %entry
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%cmp1 = icmp slt i32 %b, 7
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%mul = shl nsw i32 %b, 1
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%add = add nsw i32 %b, 1
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%cond = select i1 %cmp1, i32 %mul, i32 %add
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%cmp2 = icmp slt i32 %cond, 17
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br i1 %cmp2, label %if.then, label %if.end
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if.then: ; preds = %lor.lhs.false, %entry
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end: ; preds = %if.then, %lor.lhs.false
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ret i32 7
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}
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; Second block clobbers the flags and ends with a tbz terminator.
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; CHECK: single_flagclobber_tbz
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; CHECK: cmp
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; CHECK: b.eq
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; CHECK: cmp
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; CHECK: tbz
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define i32 @single_flagclobber_tbz(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 5
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br i1 %cmp, label %if.then, label %lor.lhs.false
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lor.lhs.false: ; preds = %entry
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%cmp1 = icmp slt i32 %b, 7
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%mul = shl nsw i32 %b, 1
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%add = add nsw i32 %b, 1
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%cond = select i1 %cmp1, i32 %mul, i32 %add
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%and = and i32 %cond, 8
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%cmp2 = icmp ne i32 %and, 0
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br i1 %cmp2, label %if.then, label %if.end
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if.then: ; preds = %lor.lhs.false, %entry
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end: ; preds = %if.then, %lor.lhs.false
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ret i32 7
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}
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; Speculatively execute division by zero.
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; The sdiv/udiv instructions do not trap when the divisor is zero, so they are
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; safe to speculate.
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; CHECK: speculate_division
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; CHECK-NOT: cmp
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; CHECK: sdiv
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; CHECK: cmp
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; CHECK-NEXT: ccmp
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define i32 @speculate_division(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp sgt i32 %a, 0
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br i1 %cmp, label %land.lhs.true, label %if.end
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land.lhs.true:
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%div = sdiv i32 %b, %a
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%cmp1 = icmp slt i32 %div, 17
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br i1 %cmp1, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Floating point compare.
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; CHECK: single_fcmp
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; CHECK: cmp
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; CHECK-NOT: b.
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; CHECK: fccmp {{.*}}, #8, ge
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; CHECK: b.lt
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define i32 @single_fcmp(i32 %a, float %b) nounwind ssp {
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entry:
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%cmp = icmp sgt i32 %a, 0
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br i1 %cmp, label %land.lhs.true, label %if.end
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land.lhs.true:
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%conv = sitofp i32 %a to float
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%div = fdiv float %b, %conv
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%cmp1 = fcmp oge float %div, 1.700000e+01
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br i1 %cmp1, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Chain multiple compares.
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; CHECK: multi_different
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; CHECK: cmp
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; CHECK: ccmp
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; CHECK: ccmp
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; CHECK: b.
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define void @multi_different(i32 %a, i32 %b, i32 %c) nounwind ssp {
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entry:
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%cmp = icmp sgt i32 %a, %b
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br i1 %cmp, label %land.lhs.true, label %if.end
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land.lhs.true:
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%div = sdiv i32 %b, %a
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%cmp1 = icmp eq i32 %div, 5
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%cmp4 = icmp sgt i32 %div, %c
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%or.cond = and i1 %cmp1, %cmp4
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; Convert a cbz in the head block.
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; CHECK: cbz_head
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; CHECK: cmp w0, #0
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; CHECK: ccmp
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define i32 @cbz_head(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 0
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%cmp1 = icmp ne i32 %b, 17
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Check that the immediate operand is in range. The ccmp instruction encodes a
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; smaller range of immediates than subs/adds.
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; The ccmp immediates must be in the range 0-31.
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; CHECK: immediate_range
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; CHECK-NOT: ccmp
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define i32 @immediate_range(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 5
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%cmp1 = icmp eq i32 %b, 32
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Convert a cbz in the second block.
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; CHECK: cbz_second
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; CHECK: cmp w0, #0
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; CHECK: ccmp w1, #0, #0, ne
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; CHECK: b.eq
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define i32 @cbz_second(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 0
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%cmp1 = icmp ne i32 %b, 0
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Convert a cbnz in the second block.
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; CHECK: cbnz_second
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; CHECK: cmp w0, #0
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; CHECK: ccmp w1, #0, #4, ne
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; CHECK: b.ne
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define i32 @cbnz_second(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 0
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%cmp1 = icmp eq i32 %b, 0
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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declare i32 @foo()
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%str1 = type { %str2 }
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%str2 = type { [24 x i8], i8*, i32, %str1*, i32, [4 x i8], %str1*, %str1*, %str1*, %str1*, %str1*, %str1*, %str1*, %str1*, %str1*, i8*, i8, i8*, %str1*, i8* }
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; Test case distilled from 126.gcc.
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; The phi in sw.bb.i.i gets multiple operands for the %entry predecessor.
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; CHECK: build_modify_expr
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define void @build_modify_expr() nounwind ssp {
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entry:
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switch i32 undef, label %sw.bb.i.i [
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i32 69, label %if.end85
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i32 70, label %if.end85
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i32 71, label %if.end85
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i32 72, label %if.end85
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i32 73, label %if.end85
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i32 105, label %if.end85
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i32 106, label %if.end85
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]
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if.end85:
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ret void
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sw.bb.i.i:
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%ref.tr.i.i = phi %str1* [ %0, %sw.bb.i.i ], [ undef, %entry ]
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[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.
This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.
* This doesn't modify gep operators, only instructions (operators will be
handled separately)
* Textual IR changes only. Bitcode (including upgrade) and changing the
in-memory representation will be in separate changes.
* geps of vectors are transformed as:
getelementptr <4 x float*> %x, ...
->getelementptr float, <4 x float*> %x, ...
Then, once the opaque pointer type is introduced, this will ultimately look
like:
getelementptr float, <4 x ptr> %x
with the unambiguous interpretation that it is a vector of pointers to float.
* address spaces remain on the pointer, not the type:
getelementptr float addrspace(1)* %x
->getelementptr float, float addrspace(1)* %x
Then, eventually:
getelementptr float, ptr addrspace(1) %x
Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.
update.py:
import fileinput
import sys
import re
ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
def conv(match, line):
if not match:
return line
line = match.groups()[0]
if len(match.groups()[5]) == 0:
line += match.groups()[2]
line += match.groups()[3]
line += ", "
line += match.groups()[1]
line += "\n"
return line
for line in sys.stdin:
if line.find("getelementptr ") == line.find("getelementptr inbounds"):
if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
line = conv(re.match(ibrep, line), line)
elif line.find("getelementptr ") != line.find("getelementptr ("):
line = conv(re.match(normrep, line), line)
sys.stdout.write(line)
apply.sh:
for name in "$@"
do
python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
rm -f "$name.tmp"
done
The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh
After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).
The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7636
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00
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%operands.i.i = getelementptr inbounds %str1, %str1* %ref.tr.i.i, i64 0, i32 0, i32 2
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2014-03-29 10:18:08 +00:00
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%arrayidx.i.i = bitcast i32* %operands.i.i to %str1**
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%0 = load %str1** %arrayidx.i.i, align 8
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[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.
This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.
* This doesn't modify gep operators, only instructions (operators will be
handled separately)
* Textual IR changes only. Bitcode (including upgrade) and changing the
in-memory representation will be in separate changes.
* geps of vectors are transformed as:
getelementptr <4 x float*> %x, ...
->getelementptr float, <4 x float*> %x, ...
Then, once the opaque pointer type is introduced, this will ultimately look
like:
getelementptr float, <4 x ptr> %x
with the unambiguous interpretation that it is a vector of pointers to float.
* address spaces remain on the pointer, not the type:
getelementptr float addrspace(1)* %x
->getelementptr float, float addrspace(1)* %x
Then, eventually:
getelementptr float, ptr addrspace(1) %x
Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.
update.py:
import fileinput
import sys
import re
ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
def conv(match, line):
if not match:
return line
line = match.groups()[0]
if len(match.groups()[5]) == 0:
line += match.groups()[2]
line += match.groups()[3]
line += ", "
line += match.groups()[1]
line += "\n"
return line
for line in sys.stdin:
if line.find("getelementptr ") == line.find("getelementptr inbounds"):
if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
line = conv(re.match(ibrep, line), line)
elif line.find("getelementptr ") != line.find("getelementptr ("):
line = conv(re.match(normrep, line), line)
sys.stdout.write(line)
apply.sh:
for name in "$@"
do
python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
rm -f "$name.tmp"
done
The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh
After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).
The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7636
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00
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%code1.i.i.phi.trans.insert = getelementptr inbounds %str1, %str1* %0, i64 0, i32 0, i32 0, i64 16
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2014-03-29 10:18:08 +00:00
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br label %sw.bb.i.i
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}
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