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https://github.com/RPCS3/llvm-mirror.git
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1f224c132e
The many levels of nesting inside the responsible code made it easy for bugs to sneak in. Flattening the logic makes it easier to see what's going on. llvm-svn: 275244
59 lines
2.8 KiB
LLVM
59 lines
2.8 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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; Verify that over-indexed getelementptrs are folded.
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@A = external global [2 x [3 x [5 x [7 x i32]]]]
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@B = global i32* getelementptr ([2 x [3 x [5 x [7 x i32]]]], [2 x [3 x [5 x [7 x i32]]]]* @A, i64 0, i64 0, i64 2, i64 1, i64 7523)
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; CHECK: @B = global i32* getelementptr ([2 x [3 x [5 x [7 x i32]]]], [2 x [3 x [5 x [7 x i32]]]]* @A, i64 36, i64 0, i64 1, i64 0, i64 5)
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@C = global i32* getelementptr ([2 x [3 x [5 x [7 x i32]]]], [2 x [3 x [5 x [7 x i32]]]]* @A, i64 3, i64 2, i64 0, i64 0, i64 7523)
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; CHECK: @C = global i32* getelementptr ([2 x [3 x [5 x [7 x i32]]]], [2 x [3 x [5 x [7 x i32]]]]* @A, i64 39, i64 1, i64 1, i64 4, i64 5)
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; Verify that constant expression GEPs work with i84 indices.
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@D = external global [1 x i32]
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@E = global i32* getelementptr inbounds ([1 x i32], [1 x i32]* @D, i84 0, i64 1)
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; CHECK: @E = global i32* getelementptr inbounds ([1 x i32], [1 x i32]* @D, i84 1, i64 0)
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; Verify that i16 indices work.
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@x = external global {i32, i32}
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@y = global i32* getelementptr ({ i32, i32 }, { i32, i32 }* @x, i16 42, i32 0)
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; CHECK: @y = global i32* getelementptr ({ i32, i32 }, { i32, i32 }* @x, i16 42, i32 0)
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@PR23753_a = external global i8
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@PR23753_b = global i8* getelementptr (i8, i8* @PR23753_a, i64 ptrtoint (i8* @PR23753_a to i64))
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; CHECK: @PR23753_b = global i8* getelementptr (i8, i8* @PR23753_a, i64 ptrtoint (i8* @PR23753_a to i64))
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; See if i92 indices work too.
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define i32 *@test({i32, i32}* %t, i92 %n) {
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; CHECK: @test
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; CHECK: %B = getelementptr { i32, i32 }, { i32, i32 }* %t, i92 %n, i32 0
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%B = getelementptr {i32, i32}, {i32, i32}* %t, i92 %n, i32 0
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ret i32* %B
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}
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; Verify that constant expression vector GEPs work.
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@z = global <2 x i32*> getelementptr ([3 x {i32, i32}], <2 x [3 x {i32, i32}]*> zeroinitializer, <2 x i32> <i32 1, i32 2>, <2 x i32> <i32 2, i32 3>, <2 x i32> <i32 1, i32 1>)
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; Verify that struct GEP works with a vector of pointers.
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define <2 x i32*> @test7(<2 x {i32, i32}*> %a) {
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%w = getelementptr {i32, i32}, <2 x {i32, i32}*> %a, <2 x i32> <i32 5, i32 9>, <2 x i32> zeroinitializer
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ret <2 x i32*> %w
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}
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; Verify that array GEP works with a vector of pointers.
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define <2 x i8*> @test8(<2 x [2 x i8]*> %a) {
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%w = getelementptr [2 x i8], <2 x [2 x i8]*> %a, <2 x i32> <i32 0, i32 0>, <2 x i8> <i8 0, i8 1>
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ret <2 x i8*> %w
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}
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@array = internal global [16 x i32] [i32 -200, i32 -199, i32 -198, i32 -197, i32 -196, i32 -195, i32 -194, i32 -193, i32 -192, i32 -191, i32 -190, i32 -189, i32 -188, i32 -187, i32 -186, i32 -185], align 16
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; Verify that array GEP doesn't incorrectly infer inbounds.
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define i32* @test9() {
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entry:
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ret i32* getelementptr ([16 x i32], [16 x i32]* @array, i64 0, i64 -13)
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; CHECK-LABEL: define i32* @test9(
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; CHECK: ret i32* getelementptr ([16 x i32], [16 x i32]* @array, i64 0, i64 -13)
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}
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