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| author | Reed Kotler <rkotler@mips.com> | 2014-10-11 00:55:18 +0000 |
|---|---|---|
| committer | Reed Kotler <rkotler@mips.com> | 2014-10-11 00:55:18 +0000 |
| commit | 62de6b96b52f2da368ab8ad3bb183fbd1f0af72d (patch) | |
| tree | 50df8fbbbfdfaba000670d06309c22ee9f681029 /llvm/test | |
| parent | 9b7f36b521902ad39391b459f2e4d421a0d10a35 (diff) | |
| download | bcm5719-llvm-62de6b96b52f2da368ab8ad3bb183fbd1f0af72d.tar.gz bcm5719-llvm-62de6b96b52f2da368ab8ad3bb183fbd1f0af72d.zip | |
Add basic conditional branches in mips fast-isel
Summary: Implement the most basic form of conditional branches in Mips fast-isel.
Test Plan:
br1.ll
run 4 flavors of test-suite. mips32 r1/r2 and at -O0/O2
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: llvm-commits, rfuhler
Differential Revision: http://reviews.llvm.org/D5583
llvm-svn: 219556
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/Mips/Fast-ISel/br1.ll | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Mips/Fast-ISel/br1.ll b/llvm/test/CodeGen/Mips/Fast-ISel/br1.ll new file mode 100644 index 00000000000..579a77f88fe --- /dev/null +++ b/llvm/test/CodeGen/Mips/Fast-ISel/br1.ll @@ -0,0 +1,34 @@ +; RUN: llc -march=mipsel -relocation-model=pic -O0 -mips-fast-isel -fast-isel-abort -mcpu=mips32r2 \ +; RUN: < %s | FileCheck %s +; RUN: llc -march=mipsel -relocation-model=pic -O0 -mips-fast-isel -fast-isel-abort -mcpu=mips32 \ +; RUN: < %s | FileCheck %s + +@b = global i32 1, align 4 +@i = global i32 0, align 4 +@.str = private unnamed_addr constant [5 x i8] c"%i \0A\00", align 1 + +; Function Attrs: nounwind +define void @br() #0 { +entry: + %0 = load i32* @b, align 4 + %tobool = icmp eq i32 %0, 0 + br i1 %tobool, label %if.end, label %if.then + +if.then: ; preds = %entry + store i32 6754, i32* @i, align 4 + br label %if.end + +if.end: ; preds = %entry, %if.then + ret void +; FIXME: This instruction is redundant. +; CHECK: xor $[[REG1:[0-9]+]], ${{[0-9]+}}, $zero +; CHECK: sltiu $[[REG2:[0-9]+]], $[[REG1]], 1 +; CHECK: bgtz $[[REG2]], $BB[[BL:[0-9]+_[0-9]+]] +; CHECK: nop +; CHECK: addiu ${{[0-9]+}}, $zero, 6754 +; CHECK: sw ${{[0-9]+}}, 0(${{[0-9]+}}) +; CHECK: $BB[[BL]]: + +} + +attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
