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
42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s | FileCheck %s
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target triple = "wasm32-unknown-unknown"
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define i32 @reassociate_xor(float %x, float %y) {
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; CHECK-LABEL: reassociate_xor:
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; CHECK: .functype reassociate_xor (f32, f32) -> (i32)
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; CHECK-NEXT: .local i32
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; CHECK-NEXT: # %bb.0: # %entry
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; CHECK-NEXT: i32.const 1
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; CHECK-NEXT: local.set 2
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; CHECK-NEXT: block
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: f32.const 0x1p-23
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; CHECK-NEXT: f32.le
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f32.const 0x1p-23
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; CHECK-NEXT: f32.gt
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; CHECK-NEXT: i32.ne
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; CHECK-NEXT: br_if 0 # 0: down to label0
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; CHECK-NEXT: # %bb.1: # %if.then.i
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; CHECK-NEXT: i32.const 0
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; CHECK-NEXT: local.set 2
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; CHECK-NEXT: .LBB0_2: # %if.end.i
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; CHECK-NEXT: end_block # label0:
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; CHECK-NEXT: local.get 2
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; CHECK-NEXT: # fallthrough-return
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entry: ; preds = %if.then, %entry
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%cmp0 = fcmp ule float %x, 0x3E80000000000000
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%cmp1 = fcmp ugt float %y, 0x3E80000000000000
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%cmp2 = xor i1 %cmp0, %cmp1
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br i1 %cmp2, label %if.end.i, label %if.then.i
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if.then.i: ; preds = %if.end
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br label %if.end.i
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if.end.i: ; preds = %if.then.i, %if.end
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%s = phi i32 [ 1, %entry ], [ 0, %if.then.i ]
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ret i32 %s
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}
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