diff options
| author | Nick Desaulniers <ndesaulniers@google.com> | 2020-06-15 14:21:55 -0700 |
|---|---|---|
| committer | Tom Stellard <tstellar@redhat.com> | 2020-06-25 16:19:39 -0700 |
| commit | b294e611271abeb5c9c49d7fb216b9bdcc323872 (patch) | |
| tree | 532012b584165e588e71f569b84837db19ff1bef /llvm/test/CodeGen/PowerPC/inlineasm-output-template.ll | |
| parent | a110c3fc8cd9368627ce0386d7d16756be3d62ac (diff) | |
[PPCAsmPrinter] support 'L' output template for memory operands
Summary:
L is meant to support the second word used by 32b calling conventions for 64b arguments.
This is required for build 32b PowerPC Linux kernels after upstream
commit 334710b1496a ("powerpc/uaccess: Implement unsafe_put_user() using 'asm goto'")
Thanks for the report from @nathanchance, and reference to GCC's
implementation from @segher.
Fixes: pr/46186
Fixes: https://github.com/ClangBuiltLinux/linux/issues/1044
Reviewers: echristo, hfinkel, MaskRay
Reviewed By: MaskRay
Subscribers: MaskRay, wuzish, nemanjai, hiraditya, kbarton, steven.zhang, llvm-commits, segher, nathanchance, srhines
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D81767
(cherry picked from commit 2d8e105db6bea10a6b96e4a094e73a87987ef909)
Diffstat (limited to 'llvm/test/CodeGen/PowerPC/inlineasm-output-template.ll')
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/inlineasm-output-template.ll | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/llvm/test/CodeGen/PowerPC/inlineasm-output-template.ll b/llvm/test/CodeGen/PowerPC/inlineasm-output-template.ll index ea6b30dbd9a4..d56d77f26585 100644 --- a/llvm/test/CodeGen/PowerPC/inlineasm-output-template.ll +++ b/llvm/test/CodeGen/PowerPC/inlineasm-output-template.ll @@ -1,4 +1,5 @@ -; RUN: llc -mtriple=ppc32-- < %s | FileCheck %s +; RUN: llc -mtriple=ppc32 < %s | FileCheck %s +; RUN: llc -mtriple=ppc64 < %s | FileCheck %s --check-prefix=PPC64 ; Test that %c works with immediates ; CHECK-LABEL: test_inlineasm_c_output_template0 @@ -24,3 +25,13 @@ define dso_local i32 @test_inlineasm_c_output_template2() { tail call void asm sideeffect "#TEST ${0:n}", "i"(i32 42) ret i32 42 } + +; Test that the machine specific %L works with memory operands. +; CHECK-LABEL: test_inlineasm_L_output_template +; CHECK: # 4(5) +; PPC64-LABEL: test_inlineasm_L_output_template +; PPC64: # 8(4) +define dso_local void @test_inlineasm_L_output_template(i64 %0, i64* %1) { + tail call void asm sideeffect "# ${0:L}", "*m"(i64* %1) + ret void +} |