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TheRock/compiler/amd-llvm/llvm/test/CodeGen/Hexagon/loop-idiom/pmpy.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

36 lines
1.1 KiB
LLVM

; RUN: opt -hexagon-loop-idiom < %s -mtriple=hexagon-unknown-unknown -S \
; RUN: | FileCheck %s
; RUN: opt -p hexagon-loop-idiom < %s -mtriple=hexagon-unknown-unknown -S \
; RUN: | FileCheck %s
target triple = "hexagon"
; CHECK: define i64 @basic_pmpy
; CHECK: llvm.hexagon.M4.pmpyw
define i64 @basic_pmpy(i32 %P, i32 %Q) #0 {
entry:
%conv = zext i32 %Q to i64
br label %for.body
for.body: ; preds = %entry, %for.body
%i.07 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%R.06 = phi i64 [ 0, %entry ], [ %xor.R.06, %for.body ]
%shl = shl i32 1, %i.07
%and = and i32 %shl, %P
%tobool = icmp eq i32 %and, 0
%sh_prom = zext i32 %i.07 to i64
%shl1 = shl i64 %conv, %sh_prom
%xor = xor i64 %shl1, %R.06
%xor.R.06 = select i1 %tobool, i64 %R.06, i64 %xor
%inc = add nuw nsw i32 %i.07, 1
%exitcond = icmp ne i32 %inc, 32
br i1 %exitcond, label %for.body, label %for.end
for.end: ; preds = %for.body
%R.1.lcssa = phi i64 [ %xor.R.06, %for.body ]
ret i64 %R.1.lcssa
}
attributes #0 = { nounwind }