diff options
Diffstat (limited to 'test/CodeGen/X86/2007-04-25-MMX-PADDQ.ll')
| -rw-r--r-- | test/CodeGen/X86/2007-04-25-MMX-PADDQ.ll | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/test/CodeGen/X86/2007-04-25-MMX-PADDQ.ll b/test/CodeGen/X86/2007-04-25-MMX-PADDQ.ll index c39b82a1fe3..256cbbb5d9d 100644 --- a/test/CodeGen/X86/2007-04-25-MMX-PADDQ.ll +++ b/test/CodeGen/X86/2007-04-25-MMX-PADDQ.ll @@ -1,4 +1,5 @@ ; RUN: llc < %s -o - -march=x86 -mattr=+mmx | FileCheck %s +; There are no MMX instructions here. We use add+adcl for the adds. define <1 x i64> @unsigned_add3(<1 x i64>* %a, <1 x i64>* %b, i32 %count) nounwind { entry: @@ -7,9 +8,8 @@ entry: bb26: ; preds = %bb26, %entry -; CHECK: movq ({{.*}},8), %mm -; CHECK: paddq ({{.*}},8), %mm -; CHECK: paddq %mm{{[0-7]}}, %mm +; CHECK: addl %eax, %ebx +; CHECK: adcl %edx, %ebp %i.037.0 = phi i32 [ 0, %entry ], [ %tmp25, %bb26 ] ; <i32> [#uses=3] %sum.035.0 = phi <1 x i64> [ zeroinitializer, %entry ], [ %tmp22, %bb26 ] ; <<1 x i64>> [#uses=1] @@ -27,3 +27,38 @@ bb31: ; preds = %bb26, %entry %sum.035.1 = phi <1 x i64> [ zeroinitializer, %entry ], [ %tmp22, %bb26 ] ; <<1 x i64>> [#uses=1] ret <1 x i64> %sum.035.1 } + + +; This is the original test converted to use MMX intrinsics. + +define <1 x i64> @unsigned_add3a(x86_mmx* %a, x86_mmx* %b, i32 %count) nounwind { +entry: + %tmp2943 = bitcast <1 x i64><i64 0> to x86_mmx + %tmp2942 = icmp eq i32 %count, 0 ; <i1> [#uses=1] + br i1 %tmp2942, label %bb31, label %bb26 + +bb26: ; preds = %bb26, %entry + +; CHECK: movq ({{.*}},8), %mm +; CHECK: paddq ({{.*}},8), %mm +; CHECK: paddq %mm{{[0-7]}}, %mm + + %i.037.0 = phi i32 [ 0, %entry ], [ %tmp25, %bb26 ] ; <i32> [#uses=3] + %sum.035.0 = phi x86_mmx [ %tmp2943, %entry ], [ %tmp22, %bb26 ] ; <x86_mmx> [#uses=1] + %tmp13 = getelementptr x86_mmx* %b, i32 %i.037.0 ; <x86_mmx*> [#uses=1] + %tmp14 = load x86_mmx* %tmp13 ; <x86_mmx> [#uses=1] + %tmp18 = getelementptr x86_mmx* %a, i32 %i.037.0 ; <x86_mmx*> [#uses=1] + %tmp19 = load x86_mmx* %tmp18 ; <x86_mmx> [#uses=1] + %tmp21 = call x86_mmx @llvm.x86.mmx.padd.q (x86_mmx %tmp19, x86_mmx %tmp14) ; <x86_mmx> [#uses=1] + %tmp22 = call x86_mmx @llvm.x86.mmx.padd.q (x86_mmx %tmp21, x86_mmx %sum.035.0) ; <x86_mmx> [#uses=2] + %tmp25 = add i32 %i.037.0, 1 ; <i32> [#uses=2] + %tmp29 = icmp ult i32 %tmp25, %count ; <i1> [#uses=1] + br i1 %tmp29, label %bb26, label %bb31 + +bb31: ; preds = %bb26, %entry + %sum.035.1 = phi x86_mmx [ %tmp2943, %entry ], [ %tmp22, %bb26 ] ; <x86_mmx> [#uses=1] + %t = bitcast x86_mmx %sum.035.1 to <1 x i64> + ret <1 x i64> %t +} + +declare x86_mmx @llvm.x86.mmx.padd.q(x86_mmx, x86_mmx) |