8c74205642
When already have (op N0, N2), reassociate (op (op N0, N1), N2) to (op (op N0, N2), N1) to reuse the exist (op N0, N2) Reviewed By: RKSimon Differential Revision: https://reviews.llvm.org/D122539
20 lines
634 B
LLVM
20 lines
634 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-linux-generic < %s | FileCheck %s
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define void @reassociation_gt64bit(i32 %x, i32 %y, ptr %s) {
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; CHECK-LABEL: reassociation_gt64bit:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl %edi, %eax
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; CHECK-NEXT: movl %esi, %ecx
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; CHECK-NEXT: addq %rax, %rcx
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; CHECK-NEXT: movq %rcx, (%rdx)
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; CHECK-NEXT: movw $64, 8(%rdx)
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; CHECK-NEXT: retq
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%zextx = zext i32 %x to i80
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%zexty = zext i32 %y to i80
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%add1 = add i80 %zextx, 1180591620717411303424
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%add2 = add i80 %add1, %zexty
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store i80 %add2, ptr %s
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ret void
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}
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