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Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277624 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
2.3 KiB
LLVM
89 lines
2.3 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -march=ppc64 -mcpu=pwr7 | FileCheck %s
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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define void @foo() nounwind noinline {
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ret void
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}
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define weak void @foo_weak() nounwind {
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ret void
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}
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; Calls to local function does not require the TOC restore 'nop'
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define void @test_direct() nounwind readnone {
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; CHECK-LABEL: test_direct:
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tail call void @foo() nounwind
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; Because of tail call optimization, it can be 'b' instruction.
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; CHECK: [[BR:b[l]?]] foo
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; CHECK-NOT: nop
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ret void
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}
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; Calls to weak function requires a TOC restore 'nop' because they
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; may be overridden in a different module.
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define void @test_weak() nounwind readnone {
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; CHECK-LABEL: test_weak:
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tail call void @foo_weak() nounwind
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; CHECK: bl foo
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; CHECK-NEXT: nop
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ret void
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}
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; Indirect calls requires a full stub creation
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define void @test_indirect(void ()* nocapture %fp) nounwind {
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; CHECK-LABEL: test_indirect:
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tail call void %fp() nounwind
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; CHECK: ld [[FP:[0-9]+]], 0(3)
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; CHECK: ld 11, 16(3)
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; CHECK: ld 2, 8(3)
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; CHECK-NEXT: mtctr [[FP]]
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; CHECK-NEXT: bctrl
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; CHECK-NEXT: ld 2, 40(1)
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ret void
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}
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; Absolute values must use the regular indirect call sequence
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; The main purpose of this test is to ensure that BLA is not
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; used on 64-bit SVR4 (as e.g. on Darwin).
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define void @test_abs() nounwind {
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; CHECK-LABEL: test_abs:
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tail call void inttoptr (i64 1024 to void ()*)() nounwind
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; CHECK: ld [[FP:[0-9]+]], 1024(0)
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; CHECK: ld 11, 1040(0)
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; CHECK: ld 2, 1032(0)
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; CHECK-NEXT: mtctr [[FP]]
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; CHECK-NEXT: bctrl
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; CHECK-NEXT: ld 2, 40(1)
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ret void
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}
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declare double @sin(double) nounwind
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; External functions call should also have a 'nop'
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define double @test_external(double %x) nounwind {
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; CHECK-LABEL: test_external:
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%call = tail call double @sin(double %x) nounwind
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; CHECK: bl sin
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; CHECK-NEXT: nop
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ret double %call
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}
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; The 'ld 2, 40(1)' really must always come directly after the bctrl to make
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; the unwinding code in libgcc happy.
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@g = external global void ()*
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declare void @h(i64)
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define void @test_indir_toc_reload(i64 %x) {
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%1 = load void ()*, void ()** @g
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call void %1()
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call void @h(i64 %x)
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ret void
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; CHECK-LABEL: @test_indir_toc_reload
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; CHECK: bctrl
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; CHECK-NEXT: ld 2, 40(1)
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; CHECK: blr
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}
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