Update LLVM for 3.5 rebase (r209712).

[android-x86/external-llvm.git] / test / CodeGen / Mips / cmov.ll

diff --git a/test/CodeGen/Mips/cmov.ll b/test/CodeGen/Mips/cmov.ll
old mode 100755 (executable)
new mode 100644 (file)
index 81925a4..b9732eb
--- a/test/CodeGen/Mips/cmov.ll
+++ b/test/CodeGen/Mips/cmov.ll
@@ -1,16 +1,17 @@
 ; RUN: llc -march=mips < %s | FileCheck %s -check-prefix=O32
 ; RUN: llc -march=mips -regalloc=basic < %s | FileCheck %s -check-prefix=O32
+; RUN: llc -march=mips64el -mcpu=mips4 -mattr=n64 < %s | FileCheck %s -check-prefix=N64
 ; RUN: llc -march=mips64el -mcpu=mips64 -mattr=n64 < %s | FileCheck %s -check-prefix=N64
 
 @i1 = global [3 x i32] [i32 1, i32 2, i32 3], align 4
 @i3 = common global i32* null, align 4
 
-; O32:  lw $[[R0:[0-9]+]], %got(i3)
-; O32:  addiu $[[R1:[0-9]+]], ${{[0-9]+}}, %got(i1) 
-; O32:  movn $[[R0]], $[[R1]], ${{[0-9]+}} 
-; N64:  ldr $[[R0:[0-9]+]] 
-; N64:  ld $[[R1:[0-9]+]], %got_disp(i1)
-; N64:  movn $[[R0]], $[[R1]], ${{[0-9]+}} 
+; O32-DAG:  lw $[[R0:[0-9]+]], %got(i3)
+; O32-DAG:  addiu $[[R1:[0-9]+]], ${{[0-9]+}}, %got(i1)
+; O32:      movn $[[R0]], $[[R1]], ${{[0-9]+}}
+; N64-DAG:  ldr $[[R0:[0-9]+]]
+; N64-DAG:  ld $[[R1:[0-9]+]], %got_disp(i1)
+; N64:      movn $[[R0]], $[[R1]], ${{[0-9]+}}
 define i32* @cmov1(i32 %s) nounwind readonly {
 entry:
   %tobool = icmp ne i32 %s, 0
@@ -22,11 +23,11 @@ entry:
 @c = global i32 1, align 4
 @d = global i32 0, align 4
 
-; O32: cmov2:
+; O32-LABEL: cmov2:
 ; O32: addiu $[[R1:[0-9]+]], ${{[a-z0-9]+}}, %got(d)
 ; O32: addiu $[[R0:[0-9]+]], ${{[a-z0-9]+}}, %got(c)
 ; O32: movn  $[[R1]], $[[R0]], ${{[0-9]+}}
-; N64: cmov2:
+; N64-LABEL: cmov2:
 ; N64: daddiu $[[R1:[0-9]+]], ${{[0-9]+}}, %got_disp(d)
 ; N64: daddiu $[[R0:[0-9]+]], ${{[0-9]+}}, %got_disp(c)
 ; N64: movn  $[[R1]], $[[R0]], ${{[0-9]+}}
@@ -39,7 +40,7 @@ entry:
   ret i32 %cond
 }
 
-; O32: cmov3:
+; O32-LABEL: cmov3:
 ; O32: xori $[[R0:[0-9]+]], ${{[0-9]+}}, 234
 ; O32: movz ${{[0-9]+}}, ${{[0-9]+}}, $[[R0]]
 define i32 @cmov3(i32 %a, i32 %b, i32 %c) nounwind readnone {
@@ -49,7 +50,7 @@ entry:
   ret i32 %cond
 }
 
-; N64: cmov4:
+; N64-LABEL: cmov4:
 ; N64: xori $[[R0:[0-9]+]], ${{[0-9]+}}, 234
 ; N64: movz ${{[0-9]+}}, ${{[0-9]+}}, $[[R0]]
 define i64 @cmov4(i32 %a, i64 %b, i64 %c) nounwind readnone {
@@ -67,51 +68,51 @@ entry:
 ;  (movz t, (setlt a, N + 1), f)
 ; if N + 1 fits in 16-bit.
 
-; O32: slti0:
+; O32-LABEL: slti0:
 ; O32: slti $[[R0:[0-9]+]], ${{[0-9]+}}, 32767
 ; O32: movz ${{[0-9]+}}, ${{[0-9]+}}, $[[R0]]
 
 define i32 @slti0(i32 %a) {
 entry:
   %cmp = icmp sgt i32 %a, 32766
-  %cond = select i1 %cmp, i32 3, i32 4
+  %cond = select i1 %cmp, i32 3, i32 5
   ret i32 %cond
 }
 
-; O32: slti1:
+; O32-LABEL: slti1:
 ; O32: slt ${{[0-9]+}}
 
 define i32 @slti1(i32 %a) {
 entry:
   %cmp = icmp sgt i32 %a, 32767
-  %cond = select i1 %cmp, i32 3, i32 4
+  %cond = select i1 %cmp, i32 3, i32 5
   ret i32 %cond
 }
 
-; O32: slti2:
+; O32-LABEL: slti2:
 ; O32: slti $[[R0:[0-9]+]], ${{[0-9]+}}, -32768
 ; O32: movz ${{[0-9]+}}, ${{[0-9]+}}, $[[R0]]
 
 define i32 @slti2(i32 %a) {
 entry:
   %cmp = icmp sgt i32 %a, -32769
-  %cond = select i1 %cmp, i32 3, i32 4
+  %cond = select i1 %cmp, i32 3, i32 5
   ret i32 %cond
 }
 
-; O32: slti3:
+; O32-LABEL: slti3:
 ; O32: slt ${{[0-9]+}}
 
 define i32 @slti3(i32 %a) {
 entry:
   %cmp = icmp sgt i32 %a, -32770
-  %cond = select i1 %cmp, i32 3, i32 4
+  %cond = select i1 %cmp, i32 3, i32 5
   ret i32 %cond
 }
 
 ; 64-bit patterns.
 
-; N64: slti64_0:
+; N64-LABEL: slti64_0:
 ; N64: slti $[[R0:[0-9]+]], ${{[0-9]+}}, 32767
 ; N64: movz ${{[0-9]+}}, ${{[0-9]+}}, $[[R0]]
 
@@ -122,7 +123,7 @@ entry:
   ret i64 %conv
 }
 
-; N64: slti64_1:
+; N64-LABEL: slti64_1:
 ; N64: slt ${{[0-9]+}}
 
 define i64 @slti64_1(i64 %a) {
@@ -132,7 +133,7 @@ entry:
   ret i64 %conv
 }
 
-; N64: slti64_2:
+; N64-LABEL: slti64_2:
 ; N64: slti $[[R0:[0-9]+]], ${{[0-9]+}}, -32768
 ; N64: movz ${{[0-9]+}}, ${{[0-9]+}}, $[[R0]]
 
@@ -143,7 +144,7 @@ entry:
   ret i64 %conv
 }
 
-; N64: slti64_3:
+; N64-LABEL: slti64_3:
 ; N64: slt ${{[0-9]+}}
 
 define i64 @slti64_3(i64 %a) {
@@ -155,44 +156,87 @@ entry:
 
 ; sltiu instructions.
 
-; O32: sltiu0:
+; O32-LABEL: sltiu0:
 ; O32: sltiu $[[R0:[0-9]+]], ${{[0-9]+}}, 32767
 ; O32: movz ${{[0-9]+}}, ${{[0-9]+}}, $[[R0]]
 
 define i32 @sltiu0(i32 %a) {
 entry:
   %cmp = icmp ugt i32 %a, 32766
-  %cond = select i1 %cmp, i32 3, i32 4
+  %cond = select i1 %cmp, i32 3, i32 5
   ret i32 %cond
 }
 
-; O32: sltiu1:
+; O32-LABEL: sltiu1:
 ; O32: sltu ${{[0-9]+}}
 
 define i32 @sltiu1(i32 %a) {
 entry:
   %cmp = icmp ugt i32 %a, 32767
-  %cond = select i1 %cmp, i32 3, i32 4
+  %cond = select i1 %cmp, i32 3, i32 5
   ret i32 %cond
 }
 
-; O32: sltiu2:
+; O32-LABEL: sltiu2:
 ; O32: sltiu $[[R0:[0-9]+]], ${{[0-9]+}}, -32768
 ; O32: movz ${{[0-9]+}}, ${{[0-9]+}}, $[[R0]]
 
 define i32 @sltiu2(i32 %a) {
 entry:
   %cmp = icmp ugt i32 %a, -32769
-  %cond = select i1 %cmp, i32 3, i32 4
+  %cond = select i1 %cmp, i32 3, i32 5
   ret i32 %cond
 }
 
-; O32: sltiu3:
+; O32-LABEL: sltiu3:
 ; O32: sltu ${{[0-9]+}}
 
 define i32 @sltiu3(i32 %a) {
 entry:
   %cmp = icmp ugt i32 %a, -32770
-  %cond = select i1 %cmp, i32 3, i32 4
+  %cond = select i1 %cmp, i32 3, i32 5
   ret i32 %cond
 }
+
+; Check if
+;  (select (setxx a, N), x, x-1) or
+;  (select (setxx a, N), x-1, x)
+; doesn't generate conditional moves
+; for constant operands whose difference is |1|
+
+define i32 @slti4(i32 %a) nounwind readnone {
+  %1 = icmp slt i32 %a, 7
+  %2 = select i1 %1, i32 4, i32 3
+  ret i32 %2
+}
+
+; O32-LABEL: slti4:
+; O32-DAG: slti [[R1:\$[0-9]+]], $4, 7
+; O32-DAG: addiu [[R2:\$[0-9]+]], [[R1]], 3
+; O32-NOT: movn
+; O32:.size slti4
+
+define i32 @slti5(i32 %a) nounwind readnone {
+  %1 = icmp slt i32 %a, 7
+  %2 = select i1 %1, i32 -3, i32 -4
+  ret i32 %2
+}
+
+; O32-LABEL: slti5:
+; O32-DAG: slti [[R1:\$[0-9]+]], $4, 7
+; O32-DAG: addiu [[R3:\$[0-9]+]], [[R2:\$[a-z0-9]+]], -4
+; O32-NOT: movn
+; O32:.size slti5
+
+define i32 @slti6(i32 %a) nounwind readnone {
+  %1 = icmp slt i32 %a, 7
+  %2 = select i1 %1, i32 3, i32 4
+  ret i32 %2
+}
+
+; O32-LABEL: slti6:
+; O32-DAG: slti [[R1:\$[0-9]+]], $4, 7
+; O32-DAG: xori [[R1]], [[R1]], 1
+; O32-DAG: addiu [[R2:\$[0-9]+]], [[R1]], 3
+; O32-NOT: movn
+; O32:.size slti6