llvm-6502/test/CodeGen/X86/convert-2-addr-3-addr-inc64.ll
Bob Wilson 2c04dae715 Reimplement BranchFolding change to avoid tail merging for a 1 instruction
common tail, except when the OptimizeForSize function attribute is present.
Radar 7338114.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85441 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 22:10:20 +00:00

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716 B
LLVM

; RUN: llc < %s -march=x86-64 -o %t -stats -info-output-file - | \
; RUN: grep {asm-printer} | grep {Number of machine instrs printed} | grep 5
; RUN: grep {leal 1(\%rsi),} %t
define fastcc zeroext i8 @fullGtU(i32 %i1, i32 %i2) nounwind optsize {
entry:
%0 = add i32 %i2, 1 ; <i32> [#uses=1]
%1 = sext i32 %0 to i64 ; <i64> [#uses=1]
%2 = getelementptr i8* null, i64 %1 ; <i8*> [#uses=1]
%3 = load i8* %2, align 1 ; <i8> [#uses=1]
%4 = icmp eq i8 0, %3 ; <i1> [#uses=1]
br i1 %4, label %bb3, label %bb34
bb3: ; preds = %entry
%5 = add i32 %i2, 4 ; <i32> [#uses=0]
ret i8 0
bb34: ; preds = %entry
ret i8 0
}