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e2a16fdce2
Summary: Implements fastLowerArguments() to avoid the need to fall back on SelectionDAG for 0-4 argument functions that don't do tricky things like passing double in a pair of i32's. This allows us to move all except one test to -fast-isel-abort=3. The remaining one has function prototypes of the form 'i32 (i32, double, double)' which requires floats to be passed in GPR's. The previous commit had an uninitialized variable that caused the incoming argument region to have undefined size. This has been fixed. Reviewers: sdardis Subscribers: dsanders, llvm-commits, sdardis Differential Revision: https://reviews.llvm.org/D22680 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277136 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.3 KiB
LLVM
65 lines
2.3 KiB
LLVM
; RUN: llc -march=mipsel -relocation-model=pic -O0 -fast-isel-abort=3 -mcpu=mips32r2 \
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; RUN: < %s | FileCheck %s
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; RUN: llc -march=mipsel -relocation-model=pic -O0 -fast-isel-abort=3 -mcpu=mips32 \
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; RUN: < %s | FileCheck %s
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@x = common global [128000 x float] zeroinitializer, align 4
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@y = global float* getelementptr inbounds ([128000 x float], [128000 x float]* @x, i32 0, i32 0), align 4
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@result = common global float 0.000000e+00, align 4
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@.str = private unnamed_addr constant [5 x i8] c"%f \0A\00", align 1
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; Function Attrs: nounwind
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define void @foo() {
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entry:
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; CHECK-LABEL: .ent foo
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%0 = load float*, float** @y, align 4
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%arrayidx = getelementptr inbounds float, float* %0, i32 64000
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store float 5.500000e+00, float* %arrayidx, align 4
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; CHECK: lui $[[REG_FPCONST_INT:[0-9]+]], 16560
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; CHECK: mtc1 $[[REG_FPCONST_INT]], $f[[REG_FPCONST:[0-9]+]]
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; CHECK: lw $[[REG_Y_GOT:[0-9]+]], %got(y)(${{[0-9]+}})
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; CHECK: lw $[[REG_Y:[0-9]+]], 0($[[REG_Y_GOT]])
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; CHECK: lui $[[REG_IDX_UPPER:[0-9]+]], 3
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; CHECK: ori $[[REG_IDX:[0-9]+]], $[[REG_IDX_UPPER]], 59392
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; CHECK: addu $[[REG_Y_IDX:[0-9]+]], $[[REG_IDX]], $[[REG_Y]]
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; CHECK: swc1 $f[[REG_FPCONST]], 0($[[REG_Y_IDX]])
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ret void
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; CHECK-LABEL: .end foo
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}
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; Function Attrs: nounwind
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define void @goo() {
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entry:
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; CHECK-LABEL: .ent goo
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%0 = load float*, float** @y, align 4
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%arrayidx = getelementptr inbounds float, float* %0, i32 64000
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%1 = load float, float* %arrayidx, align 4
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store float %1, float* @result, align 4
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; CHECK-DAG: lw $[[REG_RESULT:[0-9]+]], %got(result)(${{[0-9]+}})
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; CHECK-DAG: lw $[[REG_Y_GOT:[0-9]+]], %got(y)(${{[0-9]+}})
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; CHECK-DAG: lw $[[REG_Y:[0-9]+]], 0($[[REG_Y_GOT]])
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; CHECK-DAG: lui $[[REG_IDX_UPPER:[0-9]+]], 3
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; CHECK-DAG: ori $[[REG_IDX:[0-9]+]], $[[REG_IDX_UPPER]], 59392
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; CHECK-DAG: addu $[[REG_Y_IDX:[0-9]+]], $[[REG_IDX]], $[[REG_Y]]
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; CHECK-DAG: lwc1 $f[[Y_IDX:[0-9]+]], 0($[[REG_Y_IDX]])
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; CHECK-DAG: swc1 $f[[Y_IDX]], 0($[[REG_RESULT]])
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; CHECK-LABEL: .end goo
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ret void
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}
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;
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; Original C code for test.
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;
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;float x[128000];
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;float *y = x;
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;float result;
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;void foo() {
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; y[64000] = 5.5;
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;}
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;void goo() {
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; result = y[64000];
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;}
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