9571a28ee4
Due to the nature of WebAssembly, it's always better to keep rotates instead of trying to optimize it. Commit 9485d983 disabled the generation of fsh for rotates, however these tests ensure that future changes don't change the behaviour for the Wasm backend that tends to have different optimization requirements than other architectures. Also see: https://github.com/llvm/llvm-project/issues/62703 Differential Revision: https://reviews.llvm.org/D152126
49 lines
1.5 KiB
LLVM
49 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: sed 's/iX/i32/g' %s | llc --mtriple=wasm32-unknown-unknown | FileCheck --check-prefix=I32 %s
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; RUN: sed 's/iX/i64/g' %s | llc --mtriple=wasm64-unknown-unknown | FileCheck --check-prefix=I64 %s
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declare iX @llvm.fshl.iX(iX, iX, iX)
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declare iX @llvm.fshr.iX(iX, iX, iX)
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; from https://github.com/llvm/llvm-project/issues/62703
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define iX @testLeft(iX noundef %0, iX noundef %1) {
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; I32-LABEL: testLeft:
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; I32: .functype testLeft (i32, i32) -> (i32)
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; I32-NEXT: # %bb.0:
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; I32-NEXT: local.get 0
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; I32-NEXT: local.get 1
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; I32-NEXT: i32.rotl
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; I32-NEXT: # fallthrough-return
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;
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; I64-LABEL: testLeft:
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; I64: .functype testLeft (i64, i64) -> (i64)
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; I64-NEXT: # %bb.0:
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; I64-NEXT: local.get 0
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; I64-NEXT: local.get 1
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; I64-NEXT: i64.rotl
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; I64-NEXT: # fallthrough-return
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%3 = call iX @llvm.fshl.iX(iX %0, iX %0, iX %1)
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ret iX %3
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}
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define iX @testRight(iX noundef %0, iX noundef %1) {
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; I32-LABEL: testRight:
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; I32: .functype testRight (i32, i32) -> (i32)
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; I32-NEXT: # %bb.0:
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; I32-NEXT: local.get 0
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; I32-NEXT: local.get 1
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; I32-NEXT: i32.rotr
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; I32-NEXT: # fallthrough-return
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;
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; I64-LABEL: testRight:
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; I64: .functype testRight (i64, i64) -> (i64)
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; I64-NEXT: # %bb.0:
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; I64-NEXT: local.get 0
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; I64-NEXT: local.get 1
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; I64-NEXT: i64.rotr
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; I64-NEXT: # fallthrough-return
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%3 = call iX @llvm.fshr.iX(iX %0, iX %0, iX %1)
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ret iX %3
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}
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