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authorIgor Breger <igor.breger@intel.com>2017-04-07 14:41:59 +0000
committerIgor Breger <igor.breger@intel.com>2017-04-07 14:41:59 +0000
commit2953788c36e7fe37a0b6d5f24834a22eff5f889b (patch)
tree0d7888458cef7e65352b5ef9c94ff3e0104dd33b /llvm/test/CodeGen/X86
parent138ad6c9c005af27727432d89e690e1bbe40b5ad (diff)
downloadbcm5719-llvm-2953788c36e7fe37a0b6d5f24834a22eff5f889b.tar.gz
bcm5719-llvm-2953788c36e7fe37a0b6d5f24834a22eff5f889b.zip
[GlobalISel] implement narrowing for G_CONSTANT.
Summary: [GlobalISel] implement narrowing for G_CONSTANT. Reviewers: bogner, zvi, t.p.northover Reviewed By: t.p.northover Subscribers: llvm-commits, dberris, rovka, kristof.beyls Differential Revision: https://reviews.llvm.org/D31744 llvm-svn: 299772
Diffstat (limited to 'llvm/test/CodeGen/X86')
-rw-r--r--llvm/test/CodeGen/X86/GlobalISel/legalize-const.mir43
1 files changed, 43 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/GlobalISel/legalize-const.mir b/llvm/test/CodeGen/X86/GlobalISel/legalize-const.mir
new file mode 100644
index 00000000000..612d33a77fc
--- /dev/null
+++ b/llvm/test/CodeGen/X86/GlobalISel/legalize-const.mir
@@ -0,0 +1,43 @@
+# RUN: llc -mtriple=i386-linux-gnu -global-isel -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=X32
+# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=X64
+
+--- |
+ define void @constInt_check() {
+ ret void
+ }
+
+...
+---
+name: constInt_check
+# ALL-LABEL: name: constInt_check
+registers:
+ - { id: 0, class: _ }
+ - { id: 1, class: _ }
+ - { id: 2, class: _ }
+ - { id: 3, class: _ }
+ - { id: 4, class: _ }
+body: |
+ bb.1 (%ir-block.0):
+ ; ALL: %5(s8) = G_CONSTANT i8 -1
+ ; ALL: %0(s1) = G_TRUNC %5(s8)
+ %0(s1) = G_CONSTANT i1 1
+
+ ; ALL: %1(s8) = G_CONSTANT i8 8
+ %1(s8) = G_CONSTANT i8 8
+
+ ; ALL: %2(s16) = G_CONSTANT i16 16
+ %2(s16) = G_CONSTANT i16 16
+
+ ; ALL: %3(s32) = G_CONSTANT i32 32
+ %3(s32) = G_CONSTANT i32 32
+
+ ; X64: %4(s64) = G_CONSTANT i64 64
+
+ ; X32: %6(s32) = G_CONSTANT i32 64
+ ; X32: %7(s32) = G_CONSTANT i32 0
+ ; X32: %4(s64) = G_MERGE_VALUES %6(s32), %7(s32)
+ %4(s64) = G_CONSTANT i64 64
+
+ RET 0
+...
+
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