1 ; RUN: opt < %s -indvars -S | FileCheck %s 2 3 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 @G = external global i32 7 8 define void @test0(i64* %arg) { 9 bb: 10 br label %bb2 11 12 bb2: 13 %tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ] 14 %tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* null) 15 %tmp5 = load i32, i32* %tmp4, align 8 16 %tmp7 = load i64*, i64** undef, align 8 17 br label %bb2 18 } 19 20 ; CHECK-LABEL: void @test0 21 ; CHECK: load i32, i32* null 22 23 define void @test1(i64* %arg) { 24 bb: 25 br label %bb2 26 27 bb2: 28 %tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ] 29 %tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* inttoptr (i64 4 to i32*)) 30 %tmp5 = load i32, i32* %tmp4 31 %tmp7 = load i64*, i64** undef, align 8 32 br label %bb2 33 } 34 35 ; CHECK-LABEL: void @test1 36 ; CHECK: load i32, i32* inttoptr (i64 4 to i32*) 37 38 define void @test2(i64* %arg) { 39 bb: 40 br label %bb2 41 42 bb2: 43 %tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ] 44 %tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* @G) 45 %tmp5 = load i32, i32* %tmp4 46 %tmp7 = load i64*, i64** undef, align 8 47 br label %bb2 48 } 49 50 ; CHECK-LABEL: void @test2 51 ; CHECK: load i32, i32* @G 52 53 54 define void @test3(i64* %arg, i32* %loop.invariant) { 55 bb: 56 br label %bb2 57 58 bb2: 59 %tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ] 60 %tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* %loop.invariant) 61 %tmp5 = load i32, i32* %tmp4 62 %tmp7 = load i64*, i64** undef, align 8 63 br label %bb2 64 } 65 66 ; CHECK-LABEL: void @test3 67 ; CHECK: load i32, i32* %loop.invariant 68 69 define void @test4(i64* %arg, i32* %loop.invariant, i64 %N) { 70 bb: 71 br label %bb2 72 73 bb2: 74 %tmp = phi i64* [%arg, %bb ], [ %tmp7, %bb2 ] 75 %mul = mul nsw i64 %N, 64 76 %ptr = getelementptr inbounds i32, i32* %loop.invariant, i64 %mul 77 %tmp4 = call i32* @wobble(i64* nonnull %tmp, i32* %ptr) 78 %tmp5 = load i32, i32* %tmp4 79 %tmp7 = load i64*, i64** undef, align 8 80 br label %bb2 81 } 82 83 ; CHECK-LABEL: void @test4 84 ; CHECK: [[P:%[a-zA-Z$._0-9]+]] = getelementptr i32, i32* %loop.invariant 85 ; CHECK: phi 86 ; CHECK: load i32, i32* [[P]] 87 88 declare i32* @wobble(i64*, i32* returned) 89
