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822ef54156
Created a Thumb2 predicated pattern matcher that uses Thumb2 and
HasT2ExtractPack and used it to redefine the patterns for sxta{b|h}
and uxta{b|h}. Also used the similar patterns to fill in isel pattern
gaps for the corresponding instructions in the ARM backend.
The patch is mainly changes to tests since most of this functionality
appears not to have been tested.
Differential Revision: https://reviews.llvm.org/D23273
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278207 91177308-0d34-0410-b5e6-96231b3b80d8
106 lines
2.1 KiB
LLVM
106 lines
2.1 KiB
LLVM
; RUN: llc -mtriple=thumb-eabi -mcpu=cortex-m3 %s -o - | FileCheck %s
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; RUN: llc -mtriple=thumb-eabi -mcpu=cortex-m4 %s -o - | FileCheck %s --check-prefix=CHECK-M4
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define i32 @test1(i16 zeroext %z) nounwind {
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; CHECK-LABEL: test1:
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; CHECK: sxth
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%r = sext i16 %z to i32
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ret i32 %r
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}
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define i32 @test2(i8 zeroext %z) nounwind {
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; CHECK-LABEL: test2:
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; CHECK: sxtb
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%r = sext i8 %z to i32
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ret i32 %r
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}
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define i32 @test3(i16 signext %z) nounwind {
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; CHECK-LABEL: test3:
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; CHECK: uxth
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%r = zext i16 %z to i32
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ret i32 %r
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}
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define i32 @test4(i8 signext %z) nounwind {
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; CHECK-LABEL: test4:
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; CHECK: uxtb
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%r = zext i8 %z to i32
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ret i32 %r
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}
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define i32 @test5(i32 %a, i8 %b) {
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; CHECK-LABEL: test5:
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; CHECK-NOT: sxtab
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; CHECK-M4: sxtab r0, r0, r1
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%sext = sext i8 %b to i32
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%add = add i32 %a, %sext
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ret i32 %add
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}
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define i32 @test6(i32 %a, i32 %b) {
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; CHECK-LABEL: test6:
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; CHECK-NOT: sxtab
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; CHECK-M4: sxtab r0, r0, r1
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%shl = shl i32 %b, 24
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%ashr = ashr i32 %shl, 24
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%add = add i32 %a, %ashr
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ret i32 %add
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}
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define i32 @test7(i32 %a, i16 %b) {
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; CHECK-LABEL: test7:
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; CHECK-NOT: sxtah
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; CHECK-M4: sxtah r0, r0, r1
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%sext = sext i16 %b to i32
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%add = add i32 %a, %sext
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ret i32 %add
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}
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define i32 @test8(i32 %a, i32 %b) {
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; CHECK-LABEL: test8:
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; CHECK-NOT: sxtah
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; CHECK-M4: sxtah r0, r0, r1
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%shl = shl i32 %b, 16
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%ashr = ashr i32 %shl, 16
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%add = add i32 %a, %ashr
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ret i32 %add
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}
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define i32 @test9(i32 %a, i8 %b) {
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; CHECK-LABEL: test9:
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; CHECK-NOT: uxtab
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; CHECK-M4: uxtab r0, r0, r1
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%zext = zext i8 %b to i32
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%add = add i32 %a, %zext
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ret i32 %add
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}
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define i32 @test10(i32 %a, i32 %b) {
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;CHECK-LABEL: test10:
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;CHECK-NOT: uxtab
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;CHECK-M4: uxtab r0, r0, r1
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%and = and i32 %b, 255
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%add = add i32 %a, %and
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ret i32 %add
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}
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define i32 @test11(i32 %a, i16 %b) {
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; CHECK-LABEL: test11:
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; CHECK-NOT: uxtah
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; CHECK-M4: uxtah r0, r0, r1
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%zext = zext i16 %b to i32
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%add = add i32 %a, %zext
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ret i32 %add
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}
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define i32 @test12(i32 %a, i32 %b) {
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;CHECK-LABEL: test12:
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;CHECK-NOT: uxtah
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;CHECK-M4: uxtah r0, r0, r1
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%and = and i32 %b, 65535
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%add = add i32 %a, %and
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ret i32 %add
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}
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