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Diffstat (limited to 'test/CodeGen/AArch64/global-alignment.ll')
| -rw-r--r-- | test/CodeGen/AArch64/global-alignment.ll | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/test/CodeGen/AArch64/global-alignment.ll b/test/CodeGen/AArch64/global-alignment.ll deleted file mode 100644 index 5e820b8bb303..000000000000 --- a/test/CodeGen/AArch64/global-alignment.ll +++ /dev/null @@ -1,83 +0,0 @@ -; RUN: llc -mtriple=aarch64-linux-gnu -verify-machineinstrs -o - %s | FileCheck %s - -@var32 = global [3 x i32] zeroinitializer -@var64 = global [3 x i64] zeroinitializer -@var32_align64 = global [3 x i32] zeroinitializer, align 8 -@alias = alias [3 x i32], [3 x i32]* @var32_align64 - -define i64 @test_align32() { -; CHECK-LABEL: test_align32: - %addr = bitcast [3 x i32]* @var32 to i64* - - ; Since @var32 is only guaranteed to be aligned to 32-bits, it's invalid to - ; emit an "LDR x0, [x0, #:lo12:var32] instruction to implement this load. - %val = load i64, i64* %addr -; CHECK: adrp [[HIBITS:x[0-9]+]], var32 -; CHECK: add x[[ADDR:[0-9]+]], [[HIBITS]], {{#?}}:lo12:var32 -; CHECK: ldr x0, [x[[ADDR]]] - - ret i64 %val -} - -define i64 @test_align64() { -; CHECK-LABEL: test_align64: - %addr = bitcast [3 x i64]* @var64 to i64* - - ; However, var64 *is* properly aligned and emitting an adrp/add/ldr would be - ; inefficient. - %val = load i64, i64* %addr -; CHECK: adrp x[[HIBITS:[0-9]+]], var64 -; CHECK-NOT: add x[[HIBITS]] -; CHECK: ldr x0, [x[[HIBITS]], {{#?}}:lo12:var64] - - ret i64 %val -} - -define i64 @test_var32_align64() { -; CHECK-LABEL: test_var32_align64: - %addr = bitcast [3 x i32]* @var32_align64 to i64* - - ; Since @var32 is only guaranteed to be aligned to 32-bits, it's invalid to - ; emit an "LDR x0, [x0, #:lo12:var32] instruction to implement this load. - %val = load i64, i64* %addr -; CHECK: adrp x[[HIBITS:[0-9]+]], var32_align64 -; CHECK-NOT: add x[[HIBITS]] -; CHECK: ldr x0, [x[[HIBITS]], {{#?}}:lo12:var32_align64] - - ret i64 %val -} - -define i64 @test_var32_alias() { -; CHECK-LABEL: test_var32_alias: - %addr = bitcast [3 x i32]* @alias to i64* - - ; Test that we can find the alignment for aliases. - %val = load i64, i64* %addr -; CHECK: adrp x[[HIBITS:[0-9]+]], alias -; CHECK-NOT: add x[[HIBITS]] -; CHECK: ldr x0, [x[[HIBITS]], {{#?}}:lo12:alias] - - ret i64 %val -} - -@yet_another_var = external global {i32, i32} - -define i64 @test_yet_another_var() { -; CHECK-LABEL: test_yet_another_var: - - ; @yet_another_var has a preferred alignment of 8, but that's not enough if - ; we're going to be linking against other things. Its ABI alignment is only 4 - ; so we can't fold the load. - %val = load i64, i64* bitcast({i32, i32}* @yet_another_var to i64*) -; CHECK: adrp [[HIBITS:x[0-9]+]], yet_another_var -; CHECK: add x[[ADDR:[0-9]+]], [[HIBITS]], {{#?}}:lo12:yet_another_var -; CHECK: ldr x0, [x[[ADDR]]] - ret i64 %val -} - -define i64()* @test_functions() { -; CHECK-LABEL: test_functions: - ret i64()* @test_yet_another_var -; CHECK: adrp [[HIBITS:x[0-9]+]], test_yet_another_var -; CHECK: add x0, [[HIBITS]], {{#?}}:lo12:test_yet_another_var -} |
