diff options
| author | Petr Hosek <phosek@chromium.org> | 2015-04-12 23:42:25 +0000 |
|---|---|---|
| committer | Petr Hosek <phosek@chromium.org> | 2015-04-12 23:42:25 +0000 |
| commit | 9e0c890f3ee7908a61375678c5910a35dce85d85 (patch) | |
| tree | 0fa5f8b333b06a330326ad29cc5fcf1dc1d17c07 /llvm/test/MC/X86 | |
| parent | f8206cf6d49744020cec8ed1cb2ea520be5d430f (diff) | |
| download | bcm5719-llvm-9e0c890f3ee7908a61375678c5910a35dce85d85.tar.gz bcm5719-llvm-9e0c890f3ee7908a61375678c5910a35dce85d85.zip | |
[MC] Write padding into fragments when -mc-relax-all flag is used
Summary:
When instruction bundling is enabled and the -mc-relax-all flag is
set, we can write bundle padding directly into fragments and avoid
creating large number of fragments significantly reducing LLVM MC
memory usage.
Test Plan: Regression test attached
Reviewers: eliben
Subscribers: jfb, mseaborn
Differential Revision: http://reviews.llvm.org/D8072
llvm-svn: 234714
Diffstat (limited to 'llvm/test/MC/X86')
10 files changed, 26 insertions, 4 deletions
diff --git a/llvm/test/MC/X86/AlignedBundling/bundle-group-too-large-error.s b/llvm/test/MC/X86/AlignedBundling/bundle-group-too-large-error.s index a9a78a79569..5ce788098f3 100644 --- a/llvm/test/MC/X86/AlignedBundling/bundle-group-too-large-error.s +++ b/llvm/test/MC/X86/AlignedBundling/bundle-group-too-large-error.s @@ -1,4 +1,5 @@ # RUN: not llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - 2>&1 | FileCheck %s +# RUN: not llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - 2>&1 | FileCheck %s # CHECK: ERROR: Fragment can't be larger than a bundle size diff --git a/llvm/test/MC/X86/AlignedBundling/different-sections.s b/llvm/test/MC/X86/AlignedBundling/different-sections.s index 3e9fcf376d2..e1215321004 100644 --- a/llvm/test/MC/X86/AlignedBundling/different-sections.s +++ b/llvm/test/MC/X86/AlignedBundling/different-sections.s @@ -1,5 +1,7 @@ # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ # RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \ +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s # Test two different executable sections with bundling. diff --git a/llvm/test/MC/X86/AlignedBundling/labeloffset.s b/llvm/test/MC/X86/AlignedBundling/labeloffset.s index 65a008651f1..5b2efe07965 100644 --- a/llvm/test/MC/X86/AlignedBundling/labeloffset.s +++ b/llvm/test/MC/X86/AlignedBundling/labeloffset.s @@ -2,6 +2,8 @@ # RUN: llvm-objdump -disassemble -no-show-raw-insn -r - | FileCheck %s # RUN: llvm-mc -triple=i686-nacl -filetype=obj %s -o - | \ # RUN: llvm-objdump -disassemble -no-show-raw-insn -r - | FileCheck %s +# RUN: llvm-mc -triple=i686-nacl -filetype=obj -mc-relax-all %s -o - | \ +# RUN: llvm-objdump -disassemble -no-show-raw-insn -r - | FileCheck %s .bundle_align_mode 5 .text diff --git a/llvm/test/MC/X86/AlignedBundling/long-nop-pad.s b/llvm/test/MC/X86/AlignedBundling/long-nop-pad.s index 9b1ec1184b0..36e4f4b553f 100644 --- a/llvm/test/MC/X86/AlignedBundling/long-nop-pad.s +++ b/llvm/test/MC/X86/AlignedBundling/long-nop-pad.s @@ -1,5 +1,7 @@ # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ # RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \ +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s # Test that long nops are generated for padding where possible. diff --git a/llvm/test/MC/X86/AlignedBundling/nesting.s b/llvm/test/MC/X86/AlignedBundling/nesting.s index 8996170a1d1..74b8fe9ff49 100644 --- a/llvm/test/MC/X86/AlignedBundling/nesting.s +++ b/llvm/test/MC/X86/AlignedBundling/nesting.s @@ -1,5 +1,7 @@ # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ # RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \ +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s # Will be bundle-aligning to 16 byte boundaries .bundle_align_mode 4 diff --git a/llvm/test/MC/X86/AlignedBundling/pad-align-to-bundle-end.s b/llvm/test/MC/X86/AlignedBundling/pad-align-to-bundle-end.s index 6ca4046f0c7..158cde8cd45 100644 --- a/llvm/test/MC/X86/AlignedBundling/pad-align-to-bundle-end.s +++ b/llvm/test/MC/X86/AlignedBundling/pad-align-to-bundle-end.s @@ -1,5 +1,7 @@ # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ # RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \ +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s # Test some variations of padding to the end of a bundle. diff --git a/llvm/test/MC/X86/AlignedBundling/pad-bundle-groups.s b/llvm/test/MC/X86/AlignedBundling/pad-bundle-groups.s index b65ee7a5cc7..7a9e30c053e 100644 --- a/llvm/test/MC/X86/AlignedBundling/pad-bundle-groups.s +++ b/llvm/test/MC/X86/AlignedBundling/pad-bundle-groups.s @@ -1,5 +1,7 @@ # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ # RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \ +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s # Test some variations of padding for bundle-locked groups. diff --git a/llvm/test/MC/X86/AlignedBundling/relax-at-bundle-end.s b/llvm/test/MC/X86/AlignedBundling/relax-at-bundle-end.s index ab4affbbeac..f59ecb08a3d 100644 --- a/llvm/test/MC/X86/AlignedBundling/relax-at-bundle-end.s +++ b/llvm/test/MC/X86/AlignedBundling/relax-at-bundle-end.s @@ -1,5 +1,7 @@ # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ # RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \ +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s # Test that an instruction near a bundle end gets properly padded # after it is relaxed. diff --git a/llvm/test/MC/X86/AlignedBundling/relax-in-bundle-group.s b/llvm/test/MC/X86/AlignedBundling/relax-in-bundle-group.s index 0a99bb5ce56..d07619063f0 100644 --- a/llvm/test/MC/X86/AlignedBundling/relax-in-bundle-group.s +++ b/llvm/test/MC/X86/AlignedBundling/relax-in-bundle-group.s @@ -1,5 +1,7 @@ # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ # RUN: | llvm-objdump -disassemble - | FileCheck %s +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \ +# RUN: | llvm-objdump -disassemble - | FileCheck %s # Test that instructions inside bundle-locked groups are relaxed even if their # fixup is short enough not to warrant relaxation on its own. diff --git a/llvm/test/MC/X86/AlignedBundling/single-inst-bundling.s b/llvm/test/MC/X86/AlignedBundling/single-inst-bundling.s index c0275f4d1ec..a7df2c96a8e 100644 --- a/llvm/test/MC/X86/AlignedBundling/single-inst-bundling.s +++ b/llvm/test/MC/X86/AlignedBundling/single-inst-bundling.s @@ -1,5 +1,7 @@ # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ -# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck -check-prefix=CHECK -check-prefix=CHECK-OPT %s +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \ +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck -check-prefix=CHECK -check-prefix=CHECK-RELAX %s # Test simple NOP insertion for single instructions. @@ -24,14 +26,17 @@ foo: movl %ebx, %edi callq bar cmpl %r14d, %ebp +# CHECK-RELAX: nopl jle .L_ELSE # Due to the padding that's inserted before the addl, the jump target # becomes farther by one byte. -# CHECK: jle 5 +# CHECK-OPT: jle 5 +# CHECK-RELAX: jle 7 addl %ebp, %eax -# CHECK: nop -# CHECK-NEXT: 20: addl +# CHECK-OPT: nop +# CHECK-OPT-NEXT:20: addl +# CHECK-RELAX: 26: addl jmp .L_RET .L_ELSE: |
