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dd190243ee
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219556 91177308-0d34-0410-b5e6-96231b3b80d8
35 lines
1.3 KiB
LLVM
35 lines
1.3 KiB
LLVM
; RUN: llc -march=mipsel -relocation-model=pic -O0 -mips-fast-isel -fast-isel-abort -mcpu=mips32r2 \
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; RUN: < %s | FileCheck %s
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; RUN: llc -march=mipsel -relocation-model=pic -O0 -mips-fast-isel -fast-isel-abort -mcpu=mips32 \
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; RUN: < %s | FileCheck %s
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@b = global i32 1, align 4
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@i = global i32 0, align 4
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@.str = private unnamed_addr constant [5 x i8] c"%i \0A\00", align 1
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; Function Attrs: nounwind
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define void @br() #0 {
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entry:
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%0 = load i32* @b, align 4
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%tobool = icmp eq i32 %0, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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store i32 6754, i32* @i, align 4
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br label %if.end
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if.end: ; preds = %entry, %if.then
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ret void
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; FIXME: This instruction is redundant.
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; CHECK: xor $[[REG1:[0-9]+]], ${{[0-9]+}}, $zero
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; CHECK: sltiu $[[REG2:[0-9]+]], $[[REG1]], 1
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; CHECK: bgtz $[[REG2]], $BB[[BL:[0-9]+_[0-9]+]]
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; CHECK: nop
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; CHECK: addiu ${{[0-9]+}}, $zero, 6754
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; CHECK: sw ${{[0-9]+}}, 0(${{[0-9]+}})
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; CHECK: $BB[[BL]]:
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}
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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" }
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