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| author | Akira Hatanaka <ahatanak@gmail.com> | 2011-08-18 23:39:37 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanak@gmail.com> | 2011-08-18 23:39:37 +0000 |
| commit | 5ac8547a412d1b42c5ff333fc0becd56b98b74cb (patch) | |
| tree | 3112baec5b6ddc47da526e733d0b020985ff9f25 /test/CodeGen/Mips/unalignedload.ll | |
| parent | 28bea08e531452992ff1e25e8584883dfbd4c232 (diff) | |
| download | external_llvm-5ac8547a412d1b42c5ff333fc0becd56b98b74cb.zip external_llvm-5ac8547a412d1b42c5ff333fc0becd56b98b74cb.tar.gz external_llvm-5ac8547a412d1b42c5ff333fc0becd56b98b74cb.tar.bz2 | |
Use subword loads instead of a 4-byte load when the size of a structure (or a
piece of it) that is being passed by value is smaller than a word.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138007 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Mips/unalignedload.ll')
| -rw-r--r-- | test/CodeGen/Mips/unalignedload.ll | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/test/CodeGen/Mips/unalignedload.ll b/test/CodeGen/Mips/unalignedload.ll index 072f057..433e896 100644 --- a/test/CodeGen/Mips/unalignedload.ll +++ b/test/CodeGen/Mips/unalignedload.ll @@ -1,16 +1,41 @@ -; RUN: llc -march=mips < %s | FileCheck %s - +; RUN: llc < %s -march=mipsel | FileCheck %s -check-prefix=CHECK-EL +; RUN: llc < %s -march=mips | FileCheck %s -check-prefix=CHECK-EB %struct.S2 = type { %struct.S1, %struct.S1 } %struct.S1 = type { i8, i8 } +%struct.S4 = type { [7 x i8] } @s2 = common global %struct.S2 zeroinitializer, align 1 +@s4 = common global %struct.S4 zeroinitializer, align 1 define void @foo1() nounwind { entry: -; CHECK: ulw ${{[0-9]+}}, 2 +; CHECK-EL: lw $25, %call16(foo2) +; CHECK-EL: ulhu $4, 2 +; CHECK-EL: lw $[[R0:[0-9]+]], %got(s4) +; CHECK-EL: lbu $[[R1:[0-9]+]], 6($[[R0]]) +; CHECK-EL: ulhu $[[R2:[0-9]+]], 4($[[R0]]) +; CHECK-EL: sll $[[R3:[0-9]+]], $[[R1]], 16 +; CHECK-EL: ulw $4, 0($[[R0]]) +; CHECK-EL: lw $25, %call16(foo4) +; CHECK-EL: or $5, $[[R2]], $[[R3]] + +; CHECK-EB: ulhu $[[R0:[0-9]+]], 2 +; CHECK-EB: lw $25, %call16(foo2) +; CHECK-EB: sll $4, $[[R0]], 16 +; CHECK-EB: lw $[[R1:[0-9]+]], %got(s4) +; CHECK-EB: ulhu $[[R2:[0-9]+]], 4($[[R1]]) +; CHECK-EB: lbu $[[R3:[0-9]+]], 6($[[R1]]) +; CHECK-EB: sll $[[R4:[0-9]+]], $[[R2]], 16 +; CHECK-EB: sll $[[R5:[0-9]+]], $[[R3]], 8 +; CHECK-EB: ulw $4, 0($[[R1]]) +; CHECK-EB: lw $25, %call16(foo4) +; CHECK-EB: or $5, $[[R4]], $[[R5]] tail call void @foo2(%struct.S1* byval getelementptr inbounds (%struct.S2* @s2, i32 0, i32 1)) nounwind + tail call void @foo4(%struct.S4* byval @s4) nounwind ret void } declare void @foo2(%struct.S1* byval) + +declare void @foo4(%struct.S4* byval) |