diff options
Diffstat (limited to 'test/Transforms/StraightLineStrengthReduce/slsr-gep.ll')
| -rw-r--r-- | test/Transforms/StraightLineStrengthReduce/slsr-gep.ll | 113 |
1 files changed, 86 insertions, 27 deletions
diff --git a/test/Transforms/StraightLineStrengthReduce/slsr-gep.ll b/test/Transforms/StraightLineStrengthReduce/slsr-gep.ll index 47e6637..3944739 100644 --- a/test/Transforms/StraightLineStrengthReduce/slsr-gep.ll +++ b/test/Transforms/StraightLineStrengthReduce/slsr-gep.ll @@ -2,77 +2,108 @@ target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64" -define i32 @slsr_gep(i32* %input, i64 %s) { +; foo(input[0]); +; foo(input[s]); +; foo(input[s * 2]); +; => +; p0 = &input[0]; +; foo(*p); +; p1 = p0 + s; +; foo(*p1); +; p2 = p1 + s; +; foo(*p2); +define void @slsr_gep(i32* %input, i64 %s) { ; CHECK-LABEL: @slsr_gep( ; v0 = input[0]; %p0 = getelementptr inbounds i32, i32* %input, i64 0 %v0 = load i32, i32* %p0 + call void @foo(i32 %v0) ; v1 = input[s]; %p1 = getelementptr inbounds i32, i32* %input, i64 %s ; CHECK: %p1 = getelementptr inbounds i32, i32* %input, i64 %s %v1 = load i32, i32* %p1 + call void @foo(i32 %v1) ; v2 = input[s * 2]; - %s2 = mul nsw i64 %s, 2 + %s2 = shl nsw i64 %s, 1 %p2 = getelementptr inbounds i32, i32* %input, i64 %s2 ; CHECK: %p2 = getelementptr inbounds i32, i32* %p1, i64 %s %v2 = load i32, i32* %p2 + call void @foo(i32 %v2) - ; return v0 + v1 + v2; - %1 = add i32 %v0, %v1 - %2 = add i32 %1, %v2 - ret i32 %2 + ret void } -define i32 @slsr_gep_sext(i32* %input, i32 %s) { +; foo(input[0]); +; foo(input[(long)s]); +; foo(input[(long)(s * 2)]); +; => +; p0 = &input[0]; +; foo(*p); +; p1 = p0 + (long)s; +; foo(*p1); +; p2 = p1 + (long)s; +; foo(*p2); +define void @slsr_gep_sext(i32* %input, i32 %s) { ; CHECK-LABEL: @slsr_gep_sext( ; v0 = input[0]; %p0 = getelementptr inbounds i32, i32* %input, i64 0 %v0 = load i32, i32* %p0 + call void @foo(i32 %v0) - ; v1 = input[(long)s]; + ; v1 = input[s]; %t = sext i32 %s to i64 %p1 = getelementptr inbounds i32, i32* %input, i64 %t ; CHECK: %p1 = getelementptr inbounds i32, i32* %input, i64 %t %v1 = load i32, i32* %p1 + call void @foo(i32 %v1) - ; v2 = input[(long)(s * 2)]; - %s2 = mul nsw i32 %s, 2 + ; v2 = input[s * 2]; + %s2 = shl nsw i32 %s, 1 %t2 = sext i32 %s2 to i64 %p2 = getelementptr inbounds i32, i32* %input, i64 %t2 ; CHECK: %p2 = getelementptr inbounds i32, i32* %p1, i64 %t %v2 = load i32, i32* %p2 + call void @foo(i32 %v2) - ; return v0 + v1 + v2; - %1 = add i32 %v0, %v1 - %2 = add i32 %1, %v2 - ret i32 %2 + ret void } -define i32 @slsr_gep_2d([10 x [5 x i32]]* %input, i64 %s, i64 %t) { +; int input[10][5]; +; foo(input[s][t]); +; foo(input[s * 2][t]); +; foo(input[s * 3][t]); +; => +; p0 = &input[s][t]; +; foo(*p0); +; p1 = p0 + 5s; +; foo(*p1); +; p2 = p1 + 5s; +; foo(*p2); +define void @slsr_gep_2d([10 x [5 x i32]]* %input, i64 %s, i64 %t) { ; CHECK-LABEL: @slsr_gep_2d( ; v0 = input[s][t]; %p0 = getelementptr inbounds [10 x [5 x i32]], [10 x [5 x i32]]* %input, i64 0, i64 %s, i64 %t %v0 = load i32, i32* %p0 + call void @foo(i32 %v0) ; v1 = input[s * 2][t]; - %s2 = mul nsw i64 %s, 2 + %s2 = shl nsw i64 %s, 1 ; CHECK: [[BUMP:%[a-zA-Z0-9]+]] = mul i64 %s, 5 %p1 = getelementptr inbounds [10 x [5 x i32]], [10 x [5 x i32]]* %input, i64 0, i64 %s2, i64 %t ; CHECK: %p1 = getelementptr inbounds i32, i32* %p0, i64 [[BUMP]] %v1 = load i32, i32* %p1 + call void @foo(i32 %v1) - ; v2 = input[s * 3][t]; + ; v3 = input[s * 3][t]; %s3 = mul nsw i64 %s, 3 %p2 = getelementptr inbounds [10 x [5 x i32]], [10 x [5 x i32]]* %input, i64 0, i64 %s3, i64 %t ; CHECK: %p2 = getelementptr inbounds i32, i32* %p1, i64 [[BUMP]] %v2 = load i32, i32* %p2 + call void @foo(i32 %v2) - ; return v0 + v1 + v2; - %1 = add i32 %v0, %v1 - %2 = add i32 %1, %v2 - ret i32 %2 + ret void } %struct.S = type <{ i64, i32 }> @@ -83,27 +114,55 @@ define i32 @slsr_gep_2d([10 x [5 x i32]]* %input, i64 %s, i64 %t) { ; which may not be divisible by typeof(input[s][t].f1) = 8. Therefore, we ; rewrite the candidates using byte offset instead of index offset as in ; @slsr_gep_2d. -define i64 @slsr_gep_uglygep([10 x [5 x %struct.S]]* %input, i64 %s, i64 %t) { +define void @slsr_gep_uglygep([10 x [5 x %struct.S]]* %input, i64 %s, i64 %t) { ; CHECK-LABEL: @slsr_gep_uglygep( ; v0 = input[s][t].f1; %p0 = getelementptr inbounds [10 x [5 x %struct.S]], [10 x [5 x %struct.S]]* %input, i64 0, i64 %s, i64 %t, i32 0 %v0 = load i64, i64* %p0 + call void @bar(i64 %v0) ; v1 = input[s * 2][t].f1; - %s2 = mul nsw i64 %s, 2 + %s2 = shl nsw i64 %s, 1 ; CHECK: [[BUMP:%[a-zA-Z0-9]+]] = mul i64 %s, 60 %p1 = getelementptr inbounds [10 x [5 x %struct.S]], [10 x [5 x %struct.S]]* %input, i64 0, i64 %s2, i64 %t, i32 0 ; CHECK: getelementptr inbounds i8, i8* %{{[0-9]+}}, i64 [[BUMP]] %v1 = load i64, i64* %p1 + call void @bar(i64 %v1) ; v2 = input[s * 3][t].f1; %s3 = mul nsw i64 %s, 3 %p2 = getelementptr inbounds [10 x [5 x %struct.S]], [10 x [5 x %struct.S]]* %input, i64 0, i64 %s3, i64 %t, i32 0 ; CHECK: getelementptr inbounds i8, i8* %{{[0-9]+}}, i64 [[BUMP]] %v2 = load i64, i64* %p2 + call void @bar(i64 %v2) + + ret void +} + +define void @slsr_out_of_bounds_gep(i32* %input, i32 %s) { +; CHECK-LABEL: @slsr_out_of_bounds_gep( + ; v0 = input[0]; + %p0 = getelementptr i32, i32* %input, i64 0 + %v0 = load i32, i32* %p0 + call void @foo(i32 %v0) - ; return v0 + v1 + v2; - %1 = add i64 %v0, %v1 - %2 = add i64 %1, %v2 - ret i64 %2 + ; v1 = input[(long)s]; + %t = sext i32 %s to i64 + %p1 = getelementptr i32, i32* %input, i64 %t +; CHECK: %p1 = getelementptr i32, i32* %input, i64 %t + %v1 = load i32, i32* %p1 + call void @foo(i32 %v1) + + ; v2 = input[(long)(s * 2)]; + %s2 = shl nsw i32 %s, 1 + %t2 = sext i32 %s2 to i64 + %p2 = getelementptr i32, i32* %input, i64 %t2 +; CHECK: %p2 = getelementptr i32, i32* %p1, i64 %t + %v2 = load i32, i32* %p2 + call void @foo(i32 %v2) + + ret void } + +declare void @foo(i32) +declare void @bar(i64) |