Subzero, MIPS32: Intrinsic calls for ABS.fmt and SQRT.fmt

tests_lit/llvm2ice_tests/nacl-other-intrinsics-mips.ll

+; RUN: %if --need=target_MIPS32 --need=allow_dump \
+; RUN:   --command %p2i --filetype=asm --assemble --disassemble --target mips32\
+; RUN:   -i %s --args -Om1 --skip-unimplemented \
+; RUN:   -allow-externally-defined-symbols \
+; RUN:   | %if --need=target_MIPS32 --need=allow_dump \
+; RUN:   --command FileCheck --check-prefix MIPS32 %s
+
+declare float @llvm.sqrt.f32(float)
+declare double @llvm.sqrt.f64(double)
+declare float @llvm.fabs.f32(float)
+declare double @llvm.fabs.f64(double)
+
+define internal float @test_sqrt_float(float %x, i32 %iptr) {
+entry:
+  %r = call float @llvm.sqrt.f32(float %x)
+  %r2 = call float @llvm.sqrt.f32(float %r)
+  %r3 = call float @llvm.sqrt.f32(float -0.0)
+  %r4 = fadd float %r2, %r3
+  ret float %r4
+}
+; MIPS32-LABEL: test_sqrt_float
+; MIPS32: sqrt.s
+; MIPS32: sqrt.s
+; MIPS32: sqrt.s
+; MIPS32: add.s
+
+define internal float @test_sqrt_float_mergeable_load(float %x, i32 %iptr) {

[Jim Stichnoth, 2016/09/09 17:12:41]

Do you need these "mergeable_load" tests?

I think this was probably part of x86 tests where it's possible to fold a memory
load into the sqrt instruction operand.  But this is probably not available on
mips, and even if so, only available in O2 mode whereas this test only runs Om1.

[obucinac, 2016/09/09 17:39:40]

Removed

+entry:
+  %__2 = inttoptr i32 %iptr to float*
+  %y = load float, float* %__2, align 4
+  %r5 = call float @llvm.sqrt.f32(float %y)
+  %r6 = fadd float %x, %r5
+  ret float %r6
+}
+; MIPS32-LABEL: test_sqrt_float_mergeable_load
+; MIPS32: sqrt.s
+; MIPS32: add.s
+
+define internal double @test_sqrt_double(double %x, i32 %iptr) {
+entry:
+  %r = call double @llvm.sqrt.f64(double %x)
+  %r2 = call double @llvm.sqrt.f64(double %r)
+  %r3 = call double @llvm.sqrt.f64(double -0.0)
+  %r4 = fadd double %r2, %r3
+  ret double %r4
+}
+; MIPS32-LABEL: test_sqrt_double
+; MIPS32: sqrt.d
+; MIPS32: sqrt.d
+; MIPS32: sqrt.d
+; MIPS32: add.d
+
+define internal double @test_sqrt_double_mergeable_load(double %x, i32 %iptr) {
+entry:
+  %__2 = inttoptr i32 %iptr to double*
+  %y = load double, double* %__2, align 8
+  %r5 = call double @llvm.sqrt.f64(double %y)
+  %r6 = fadd double %x, %r5
+  ret double %r6
+}
+; MIPS32-LABEL: test_sqrt_double_mergeable_load
+; MIPS32: sqrt.d
+; MIPS32: add.d
+
+define internal float @test_sqrt_ignored(float %x, double %y) {
+entry:
+  %ignored1 = call float @llvm.sqrt.f32(float %x)
+  %ignored2 = call double @llvm.sqrt.f64(double %y)
+  ret float 0.0
+}
+; MIPS32-LABEL: test_sqrt_ignored
+; MIPS32: sqrt.s
+; MIPS32: sqrt.d
+
+define internal float @test_fabs_float(float %x) {
+entry:
+  %r = call float @llvm.fabs.f32(float %x)
+  %r2 = call float @llvm.fabs.f32(float %r)
+  %r3 = call float @llvm.fabs.f32(float -0.0)
+  %r4 = fadd float %r2, %r3
+  ret float %r4
+}
+; MIPS32-LABEL: test_fabs_float
+; MIPS32: abs.s
+; MIPS32: abs.s
+; MIPS32: abs.s
+; MIPS32: add.s
+
+define internal double @test_fabs_double(double %x) {
+entry:
+  %r = call double @llvm.fabs.f64(double %x)
+  %r2 = call double @llvm.fabs.f64(double %r)
+  %r3 = call double @llvm.fabs.f64(double -0.0)
+  %r4 = fadd double %r2, %r3
+  ret double %r4
+}
+; MIPS32-LABEL: test_fabs_double
+; MIPS32: abs.d
+; MIPS32: abs.d
+; MIPS32: abs.d
+; MIPS32: add.d