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| author | Reed Kotler <rkotler@mips.com> | 2013-02-08 03:57:41 +0000 |
|---|---|---|
| committer | Reed Kotler <rkotler@mips.com> | 2013-02-08 03:57:41 +0000 |
| commit | 61b97b8c1721ba45e5c10ca307ceebe1efdf72a9 (patch) | |
| tree | a02cefffc029f07e95256f86a4c56c16f633a2d5 /test/CodeGen/Mips/largefr1.ll | |
| parent | d2bcda7706cc2a6caf3b4b304b39a9649c703278 (diff) | |
| download | llvm-61b97b8c1721ba45e5c10ca307ceebe1efdf72a9.tar.gz llvm-61b97b8c1721ba45e5c10ca307ceebe1efdf72a9.tar.bz2 llvm-61b97b8c1721ba45e5c10ca307ceebe1efdf72a9.tar.xz | |
When Mips16 frames grow large, the immediate field may exceed the maximum
allowed size for the instruction. This code uses RegScavenger to fix this.
We sometimes need 2 registers for Mips16 so we must handle things
differently than how register scavenger is normally used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174696 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Mips/largefr1.ll')
| -rw-r--r-- | test/CodeGen/Mips/largefr1.ll | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/largefr1.ll b/test/CodeGen/Mips/largefr1.ll new file mode 100644 index 0000000000..0fe89f71d9 --- /dev/null +++ b/test/CodeGen/Mips/largefr1.ll @@ -0,0 +1,61 @@ +; RUN: llc -march=mipsel -mcpu=mips16 -mips16-hard-float -soft-float -relocation-model=static < %s | FileCheck %s -check-prefix=1 + +@i = common global i32 0, align 4 +@j = common global i32 0, align 4 +@.str = private unnamed_addr constant [8 x i8] c"%i %i \0A\00", align 1 + +define void @foo(i32* %p, i32 %i, i32 %j) nounwind { +entry: + %p.addr = alloca i32*, align 4 + %i.addr = alloca i32, align 4 + %j.addr = alloca i32, align 4 + store i32* %p, i32** %p.addr, align 4 + store i32 %i, i32* %i.addr, align 4 + store i32 %j, i32* %j.addr, align 4 + %0 = load i32* %j.addr, align 4 + %1 = load i32** %p.addr, align 4 + %2 = load i32* %i.addr, align 4 + %add.ptr = getelementptr inbounds i32* %1, i32 %2 + store i32 %0, i32* %add.ptr, align 4 + ret void +} + +define i32 @main() nounwind { +entry: +; 1: main: +; 1: 1: .word -797992 +; 1: li ${{[0-9]+}}, 12 +; 1: sll ${{[0-9]+}}, ${{[0-9]+}}, 16 +; 1: addu ${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}} +; 2: move $sp, ${{[0-9]+}} +; 2: addu ${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}} +; 1: li ${{[0-9]+}}, 6 +; 1: sll ${{[0-9]+}}, ${{[0-9]+}}, 16 +; 1: addu ${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}} +; 2: move $sp, ${{[0-9]+}} +; 2: addu ${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}} +; 1: addiu ${{[0-9]+}}, ${{[0-9]+}}, 6800 +; 1: li ${{[0-9]+}}, 1 +; 1: sll ${{[0-9]+}}, ${{[0-9]+}}, 16 +; 2: li ${{[0-9]+}}, 34463 + %retval = alloca i32, align 4 + %one = alloca [100000 x i32], align 4 + %two = alloca [100000 x i32], align 4 + store i32 0, i32* %retval + %arrayidx = getelementptr inbounds [100000 x i32]* %one, i32 0, i32 0 + call void @foo(i32* %arrayidx, i32 50, i32 9999) + %arrayidx1 = getelementptr inbounds [100000 x i32]* %two, i32 0, i32 0 + call void @foo(i32* %arrayidx1, i32 99999, i32 5555) + %arrayidx2 = getelementptr inbounds [100000 x i32]* %one, i32 0, i32 50 + %0 = load i32* %arrayidx2, align 4 + store i32 %0, i32* @i, align 4 + %arrayidx3 = getelementptr inbounds [100000 x i32]* %two, i32 0, i32 99999 + %1 = load i32* %arrayidx3, align 4 + store i32 %1, i32* @j, align 4 + %2 = load i32* @i, align 4 + %3 = load i32* @j, align 4 + %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([8 x i8]* @.str, i32 0, i32 0), i32 %2, i32 %3) + ret i32 0 +} + +declare i32 @printf(i8*, ...) |