9a091de7fe
Enable FoldImmediate for X86 by implementing X86InstrInfo::FoldImmediate. Also enhanced peephole by deleting identical instructions after FoldImmediate. Differential Revision: https://reviews.llvm.org/D151848
22 lines
669 B
LLVM
22 lines
669 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-linux | FileCheck %s --check-prefix=SDAG
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; RUN: llc < %s -fast-isel -fast-isel-abort=1 -mtriple=x86_64-unknown-linux | FileCheck %s --check-prefix=FAST
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define i32 @freeze(i32 %t) {
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; SDAG-LABEL: freeze:
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; SDAG: # %bb.0:
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; SDAG-NEXT: movl %edi, %eax
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; SDAG-NEXT: xorl $10, %eax
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; SDAG-NEXT: retq
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;
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; FAST-LABEL: freeze:
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; FAST: # %bb.0:
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; FAST-NEXT: movl %edi, %eax
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; FAST-NEXT: xorl $10, %eax
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; FAST-NEXT: retq
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%1 = freeze i32 %t
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%2 = freeze i32 10
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%3 = xor i32 %1, %2
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ret i32 %3
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}
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