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authorAkira Hatanaka <ahatanaka@mips.com>2012-05-09 01:38:13 +0000
committerAkira Hatanaka <ahatanaka@mips.com>2012-05-09 01:38:13 +0000
commit56ec9f2c09afebc42ecf243eaaab598daa15957b (patch)
tree641fa1373cb71c1c0a7824fa504b88b596d592b8 /test/CodeGen/Mips/fp-spill-reload.ll
parenta284acb8a79468f378452826b2426b4bcdc27e94 (diff)
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Make register FP allocatable if the compiled function does not have dynamic
allocas. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156458 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Mips/fp-spill-reload.ll')
-rw-r--r--test/CodeGen/Mips/fp-spill-reload.ll39
1 files changed, 39 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/fp-spill-reload.ll b/test/CodeGen/Mips/fp-spill-reload.ll
new file mode 100644
index 0000000000..f9887a5582
--- /dev/null
+++ b/test/CodeGen/Mips/fp-spill-reload.ll
@@ -0,0 +1,39 @@
+; RUN: llc -march=mipsel < %s | FileCheck %s
+; check that $fp is not reserved.
+
+define void @foo0(i32* nocapture %b) nounwind {
+entry:
+; CHECK: sw $fp
+; CHECK: lw $fp
+ %0 = load i32* %b, align 4
+ %arrayidx.1 = getelementptr inbounds i32* %b, i32 1
+ %1 = load i32* %arrayidx.1, align 4
+ %add.1 = add nsw i32 %1, 1
+ %arrayidx.2 = getelementptr inbounds i32* %b, i32 2
+ %2 = load i32* %arrayidx.2, align 4
+ %add.2 = add nsw i32 %2, 2
+ %arrayidx.3 = getelementptr inbounds i32* %b, i32 3
+ %3 = load i32* %arrayidx.3, align 4
+ %add.3 = add nsw i32 %3, 3
+ %arrayidx.4 = getelementptr inbounds i32* %b, i32 4
+ %4 = load i32* %arrayidx.4, align 4
+ %add.4 = add nsw i32 %4, 4
+ %arrayidx.5 = getelementptr inbounds i32* %b, i32 5
+ %5 = load i32* %arrayidx.5, align 4
+ %add.5 = add nsw i32 %5, 5
+ %arrayidx.6 = getelementptr inbounds i32* %b, i32 6
+ %6 = load i32* %arrayidx.6, align 4
+ %add.6 = add nsw i32 %6, 6
+ %arrayidx.7 = getelementptr inbounds i32* %b, i32 7
+ %7 = load i32* %arrayidx.7, align 4
+ %add.7 = add nsw i32 %7, 7
+ call void @foo2(i32 %0, i32 %add.1, i32 %add.2, i32 %add.3, i32 %add.4, i32 %add.5, i32 %add.6, i32 %add.7) nounwind
+ call void bitcast (void (...)* @foo1 to void ()*)() nounwind
+ call void @foo2(i32 %0, i32 %add.1, i32 %add.2, i32 %add.3, i32 %add.4, i32 %add.5, i32 %add.6, i32 %add.7) nounwind
+ ret void
+}
+
+declare void @foo2(i32, i32, i32, i32, i32, i32, i32, i32)
+
+declare void @foo1(...)
+