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-rw-r--r--test/CodeGen/Mips/divrem.ll363
1 files changed, 335 insertions, 28 deletions
diff --git a/test/CodeGen/Mips/divrem.ll b/test/CodeGen/Mips/divrem.ll
index b631c3b..97f8360 100644
--- a/test/CodeGen/Mips/divrem.ll
+++ b/test/CodeGen/Mips/divrem.ll
@@ -1,77 +1,223 @@
-; RUN: llc -march=mips -verify-machineinstrs < %s |\
-; RUN: FileCheck %s -check-prefix=TRAP
-; RUN: llc -march=mips -mno-check-zero-division < %s |\
-; RUN: FileCheck %s -check-prefix=NOCHECK
+; RUN: llc -march=mips -mcpu=mips32 -verify-machineinstrs < %s | FileCheck %s -check-prefix=ALL -check-prefix=ACC32 -check-prefix=ACC32-TRAP
+; RUN: llc -march=mips -mcpu=mips32r2 -verify-machineinstrs < %s | FileCheck %s -check-prefix=ALL -check-prefix=ACC32 -check-prefix=ACC32-TRAP
+; RUN: llc -march=mips -mcpu=mips32r6 -verify-machineinstrs < %s | FileCheck %s -check-prefix=ALL -check-prefix=GPR32 -check-prefix=GPR32-TRAP
+; RUN: llc -march=mips64 -mcpu=mips64 -verify-machineinstrs < %s | FileCheck %s -check-prefix=ALL -check-prefix=ACC64 -check-prefix=ACC64-TRAP
+; RUN: llc -march=mips64 -mcpu=mips64r2 -verify-machineinstrs < %s | FileCheck %s -check-prefix=ALL -check-prefix=ACC64 -check-prefix=ACC64-TRAP
+; RUN: llc -march=mips64 -mcpu=mips64r6 -verify-machineinstrs < %s | FileCheck %s -check-prefix=ALL -check-prefix=GPR64 -check-prefix=GPR64-TRAP
-; TRAP-LABEL: sdiv1:
-; TRAP: div $zero, ${{[0-9]+}}, $[[R0:[0-9]+]]
-; TRAP: teq $[[R0]], $zero, 7
-; TRAP: mflo
+; RUN: llc -march=mips -mcpu=mips32 -mno-check-zero-division < %s | FileCheck %s -check-prefix=ALL -check-prefix=ACC32 -check-prefix=NOCHECK
+; RUN: llc -march=mips -mcpu=mips32r2 -mno-check-zero-division < %s | FileCheck %s -check-prefix=ALL -check-prefix=ACC32 -check-prefix=NOCHECK
+; RUN: llc -march=mips -mcpu=mips32r6 -mno-check-zero-division < %s | FileCheck %s -check-prefix=ALL -check-prefix=GPR32 -check-prefix=NOCHECK
+; RUN: llc -march=mips64 -mcpu=mips64 -mno-check-zero-division < %s | FileCheck %s -check-prefix=ALL -check-prefix=ACC64 -check-prefix=NOCHECK
+; RUN: llc -march=mips64 -mcpu=mips64r2 -mno-check-zero-division < %s | FileCheck %s -check-prefix=ALL -check-prefix=ACC64 -check-prefix=NOCHECK
+; RUN: llc -march=mips64 -mcpu=mips64r6 -mno-check-zero-division < %s | FileCheck %s -check-prefix=ALL -check-prefix=GPR64 -check-prefix=NOCHECK
-; NOCHECK-LABEL: sdiv1:
-; NOCHECK-NOT: teq
-; NOCHECK: .end sdiv1
+; FileCheck Prefixes:
+; ALL - All targets
+; ACC32 - Accumulator based multiply/divide on 32-bit targets
+; ACC64 - Same as ACC32 but only for 64-bit targets
+; GPR32 - GPR based multiply/divide on 32-bit targets
+; GPR64 - Same as GPR32 but only for 64-bit targets
+; ACC32-TRAP - Same as TRAP and ACC32 combined
+; ACC64-TRAP - Same as TRAP and ACC64 combined
+; GPR32-TRAP - Same as TRAP and GPR32 combined
+; GPR64-TRAP - Same as TRAP and GPR64 combined
+; NOCHECK - Division by zero will not be detected
@g0 = common global i32 0, align 4
@g1 = common global i32 0, align 4
define i32 @sdiv1(i32 %a0, i32 %a1) nounwind readnone {
entry:
+; ALL-LABEL: sdiv1:
+
+; ACC32: div $zero, $4, $5
+; ACC32-TRAP: teq $5, $zero, 7
+
+; ACC64: div $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+
+; GPR32: div $2, $4, $5
+; GPR32-TRAP: teq $5, $zero, 7
+
+; GPR64: div $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+
+; NOCHECK-NOT: teq
+
+; ACC32: mflo $2
+; ACC64: mflo $2
+
+; ALL: .end sdiv1
+
%div = sdiv i32 %a0, %a1
ret i32 %div
}
-; TRAP-LABEL: srem1:
-; TRAP: div $zero, ${{[0-9]+}}, $[[R0:[0-9]+]]
-; TRAP: teq $[[R0]], $zero, 7
-; TRAP: mfhi
-
define i32 @srem1(i32 %a0, i32 %a1) nounwind readnone {
entry:
+; ALL-LABEL: srem1:
+
+; ACC32: div $zero, $4, $5
+; ACC32-TRAP: teq $5, $zero, 7
+
+; ACC64: div $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+
+; GPR32: mod $2, $4, $5
+; GPR32-TRAP: teq $5, $zero, 7
+
+; GPR64: mod $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+
+; NOCHECK-NOT: teq
+
+; ACC32: mfhi $2
+; ACC64: mfhi $2
+
+; ALL: .end srem1
+
%rem = srem i32 %a0, %a1
ret i32 %rem
}
-; TRAP-LABEL: udiv1:
-; TRAP: divu $zero, ${{[0-9]+}}, $[[R0:[0-9]+]]
-; TRAP: teq $[[R0]], $zero, 7
-; TRAP: mflo
-
define i32 @udiv1(i32 %a0, i32 %a1) nounwind readnone {
entry:
+; ALL-LABEL: udiv1:
+
+; ACC32: divu $zero, $4, $5
+; ACC32-TRAP: teq $5, $zero, 7
+
+; ACC64: divu $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+
+; GPR32: divu $2, $4, $5
+; GPR32-TRAP: teq $5, $zero, 7
+
+; GPR64: divu $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+
+; NOCHECK-NOT: teq
+
+; ACC32: mflo $2
+; ACC64: mflo $2
+
+; ALL: .end udiv1
%div = udiv i32 %a0, %a1
ret i32 %div
}
-; TRAP-LABEL: urem1:
-; TRAP: divu $zero, ${{[0-9]+}}, $[[R0:[0-9]+]]
-; TRAP: teq $[[R0]], $zero, 7
-; TRAP: mfhi
-
define i32 @urem1(i32 %a0, i32 %a1) nounwind readnone {
entry:
+; ALL-LABEL: urem1:
+
+; ACC32: divu $zero, $4, $5
+; ACC32-TRAP: teq $5, $zero, 7
+
+; ACC64: divu $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+
+; GPR32: modu $2, $4, $5
+; GPR32-TRAP: teq $5, $zero, 7
+
+; GPR64: modu $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+
+; NOCHECK-NOT: teq
+
+; ACC32: mfhi $2
+; ACC64: mfhi $2
+
+; ALL: .end urem1
+
%rem = urem i32 %a0, %a1
ret i32 %rem
}
-; TRAP: div $zero,
define i32 @sdivrem1(i32 %a0, i32 %a1, i32* nocapture %r) nounwind {
entry:
+; ALL-LABEL: sdivrem1:
+
+; ACC32: div $zero, $4, $5
+; ACC32-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; ACC32: mflo $2
+; ACC32: mfhi $[[R0:[0-9]+]]
+; ACC32: sw $[[R0]], 0(${{[0-9]+}})
+
+; ACC64: div $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; ACC64: mflo $2
+; ACC64: mfhi $[[R0:[0-9]+]]
+; ACC64: sw $[[R0]], 0(${{[0-9]+}})
+
+; GPR32: mod $[[R0:[0-9]+]], $4, $5
+; GPR32-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; GPR32: sw $[[R0]], 0(${{[0-9]+}})
+; GPR32-DAG: div $2, $4, $5
+; GPR32-TRAP: teq $5, $zero, 7
+
+; GPR64: mod $[[R0:[0-9]+]], $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; GPR64: sw $[[R0]], 0(${{[0-9]+}})
+; GPR64-DAG: div $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+
+; ALL: .end sdivrem1
+
%rem = srem i32 %a0, %a1
store i32 %rem, i32* %r, align 4
%div = sdiv i32 %a0, %a1
ret i32 %div
}
-; TRAP: divu $zero,
define i32 @udivrem1(i32 %a0, i32 %a1, i32* nocapture %r) nounwind {
entry:
+; ALL-LABEL: udivrem1:
+
+; ACC32: divu $zero, $4, $5
+; ACC32-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; ACC32: mflo $2
+; ACC32: mfhi $[[R0:[0-9]+]]
+; ACC32: sw $[[R0]], 0(${{[0-9]+}})
+
+; ACC64: divu $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; ACC64: mflo $2
+; ACC64: mfhi $[[R0:[0-9]+]]
+; ACC64: sw $[[R0]], 0(${{[0-9]+}})
+
+; GPR32: modu $[[R0:[0-9]+]], $4, $5
+; GPR32-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; GPR32: sw $[[R0]], 0(${{[0-9]+}})
+; GPR32-DAG: divu $2, $4, $5
+; GPR32-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+
+; GPR64: modu $[[R0:[0-9]+]], $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; GPR64: sw $[[R0]], 0(${{[0-9]+}})
+; GPR64-DAG: divu $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+
+; ALL: .end udivrem1
+
%rem = urem i32 %a0, %a1
store i32 %rem, i32* %r, align 4
%div = udiv i32 %a0, %a1
ret i32 %div
}
+; FIXME: It's not clear what this is supposed to test.
define i32 @killFlags() {
entry:
%0 = load i32* @g0, align 4
@@ -79,3 +225,164 @@ entry:
%div = sdiv i32 %0, %1
ret i32 %div
}
+
+define i64 @sdiv2(i64 %a0, i64 %a1) nounwind readnone {
+entry:
+; ALL-LABEL: sdiv2:
+
+; ACC32: lw $25, %call16(__divdi3)(
+; ACC32: jalr $25
+
+; ACC64: ddiv $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+
+; GPR64: ddiv $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+
+; NOCHECK-NOT: teq
+
+; ACC64: mflo $2
+
+; ALL: .end sdiv2
+
+ %div = sdiv i64 %a0, %a1
+ ret i64 %div
+}
+
+define i64 @srem2(i64 %a0, i64 %a1) nounwind readnone {
+entry:
+; ALL-LABEL: srem2:
+
+; ACC32: lw $25, %call16(__moddi3)(
+; ACC32: jalr $25
+
+; ACC64: div $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+
+; GPR64: dmod $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+
+; NOCHECK-NOT: teq
+
+; ACC64: mfhi $2
+
+; ALL: .end srem2
+
+ %rem = srem i64 %a0, %a1
+ ret i64 %rem
+}
+
+define i64 @udiv2(i64 %a0, i64 %a1) nounwind readnone {
+entry:
+; ALL-LABEL: udiv2:
+
+; ACC32: lw $25, %call16(__udivdi3)(
+; ACC32: jalr $25
+
+; ACC64: divu $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+
+; GPR64: ddivu $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+
+; NOCHECK-NOT: teq
+
+; ACC64: mflo $2
+
+; ALL: .end udiv2
+ %div = udiv i64 %a0, %a1
+ ret i64 %div
+}
+
+define i64 @urem2(i64 %a0, i64 %a1) nounwind readnone {
+entry:
+; ALL-LABEL: urem2:
+
+; ACC32: lw $25, %call16(__umoddi3)(
+; ACC32: jalr $25
+
+; ACC64: divu $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+
+; GPR64: dmodu $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+
+; NOCHECK-NOT: teq
+
+; ACC64: mfhi $2
+
+; ALL: .end urem2
+
+ %rem = urem i64 %a0, %a1
+ ret i64 %rem
+}
+
+define i64 @sdivrem2(i64 %a0, i64 %a1, i64* nocapture %r) nounwind {
+entry:
+; ALL-LABEL: sdivrem2:
+
+; sdivrem2 is too complex to effectively check. We can at least check for the
+; calls though.
+; ACC32: lw $25, %call16(__moddi3)(
+; ACC32: jalr $25
+; ACC32: lw $25, %call16(__divdi3)(
+; ACC32: jalr $25
+
+; ACC64: ddiv $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; ACC64: mflo $2
+; ACC64: mfhi $[[R0:[0-9]+]]
+; ACC64: sd $[[R0]], 0(${{[0-9]+}})
+
+; GPR64: dmod $[[R0:[0-9]+]], $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; GPR64: sd $[[R0]], 0(${{[0-9]+}})
+
+; GPR64-DAG: ddiv $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+
+; ALL: .end sdivrem2
+
+ %rem = srem i64 %a0, %a1
+ store i64 %rem, i64* %r, align 8
+ %div = sdiv i64 %a0, %a1
+ ret i64 %div
+}
+
+define i64 @udivrem2(i64 %a0, i64 %a1, i64* nocapture %r) nounwind {
+entry:
+; ALL-LABEL: udivrem2:
+
+; udivrem2 is too complex to effectively check. We can at least check for the
+; calls though.
+; ACC32: lw $25, %call16(__umoddi3)(
+; ACC32: jalr $25
+; ACC32: lw $25, %call16(__udivdi3)(
+; ACC32: jalr $25
+
+; ACC64: ddivu $zero, $4, $5
+; ACC64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; ACC64: mflo $2
+; ACC64: mfhi $[[R0:[0-9]+]]
+; ACC64: sd $[[R0]], 0(${{[0-9]+}})
+
+; GPR64: dmodu $[[R0:[0-9]+]], $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+; GPR64: sd $[[R0]], 0(${{[0-9]+}})
+
+; GPR64-DAG: ddivu $2, $4, $5
+; GPR64-TRAP: teq $5, $zero, 7
+; NOCHECK-NOT: teq
+
+; ALL: .end udivrem2
+
+ %rem = urem i64 %a0, %a1
+ store i64 %rem, i64* %r, align 8
+ %div = udiv i64 %a0, %a1
+ ret i64 %div
+}
generated by cgit v1.1 at 2024-12-23 23:15:02 +0000