llvm-project/llvm/test/Transforms/IndVarSimplify/replace-iv-with-loop-invari...

89 lines
2.1 KiB
LLVM
Raw Normal View History

; RUN: opt < %s -indvars -S | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@G = external global i32
define void @test0(i64* %arg) {
bb:
br label %bb2
bb2:
%tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ]
%tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* null)
%tmp5 = load i32, i32* %tmp4, align 8
%tmp7 = load i64*, i64** undef, align 8
br label %bb2
}
; CHECK-LABEL: void @test0
; CHECK: load i32, i32* null
define void @test1(i64* %arg) {
bb:
br label %bb2
bb2:
%tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ]
%tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* inttoptr (i64 4 to i32*))
%tmp5 = load i32, i32* %tmp4
%tmp7 = load i64*, i64** undef, align 8
br label %bb2
}
; CHECK-LABEL: void @test1
; CHECK: load i32, i32* inttoptr (i64 4 to i32*)
define void @test2(i64* %arg) {
bb:
br label %bb2
bb2:
%tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ]
%tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* @G)
%tmp5 = load i32, i32* %tmp4
%tmp7 = load i64*, i64** undef, align 8
br label %bb2
}
; CHECK-LABEL: void @test2
; CHECK: load i32, i32* @G
define void @test3(i64* %arg, i32* %loop.invariant) {
bb:
br label %bb2
bb2:
%tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ]
%tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* %loop.invariant)
%tmp5 = load i32, i32* %tmp4
%tmp7 = load i64*, i64** undef, align 8
br label %bb2
}
; CHECK-LABEL: void @test3
; CHECK: load i32, i32* %loop.invariant
define void @test4(i64* %arg, i32* %loop.invariant, i64 %N) {
bb:
br label %bb2
bb2:
%tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ]
%mul = mul nsw i64 %N, 64
%ptr = getelementptr inbounds i32, i32* %loop.invariant, i64 %mul
%tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* %ptr)
%tmp5 = load i32, i32* %tmp4
%tmp7 = load i64*, i64** undef, align 8
br label %bb2
}
; CHECK-LABEL: void @test4
; CHECK: [[P:%[a-zA-Z$._0-9]+]] = getelementptr i32, i32* %loop.invariant
; CHECK: phi
; CHECK: load i32, i32* [[P]]
declare i32* @wobble(i64*, i32* returned)